1328970deSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2fa60ce2cSMasahiro Yamada /* 3ccd979bdSMark Fasheh * super.c 4ccd979bdSMark Fasheh * 5ccd979bdSMark Fasheh * load/unload driver, mount/dismount volumes 6ccd979bdSMark Fasheh * 7ccd979bdSMark Fasheh * Copyright (C) 2002, 2004 Oracle. All rights reserved. 8ccd979bdSMark Fasheh */ 9ccd979bdSMark Fasheh 10ccd979bdSMark Fasheh #include <linux/module.h> 11ccd979bdSMark Fasheh #include <linux/fs.h> 12ccd979bdSMark Fasheh #include <linux/types.h> 13ccd979bdSMark Fasheh #include <linux/slab.h> 14ccd979bdSMark Fasheh #include <linux/highmem.h> 15ccd979bdSMark Fasheh #include <linux/init.h> 16ccd979bdSMark Fasheh #include <linux/random.h> 17ccd979bdSMark Fasheh #include <linux/statfs.h> 18ccd979bdSMark Fasheh #include <linux/moduleparam.h> 19ccd979bdSMark Fasheh #include <linux/blkdev.h> 20ccd979bdSMark Fasheh #include <linux/socket.h> 21ccd979bdSMark Fasheh #include <linux/inet.h> 22ccd979bdSMark Fasheh #include <linux/parser.h> 23ccd979bdSMark Fasheh #include <linux/crc32.h> 24ccd979bdSMark Fasheh #include <linux/debugfs.h> 25d550071cSSunil Mushran #include <linux/mount.h> 266953b4c0SJoel Becker #include <linux/seq_file.h> 2719ece546SJan Kara #include <linux/quotaops.h> 28f361bf4aSIngo Molnar #include <linux/signal.h> 29ccd979bdSMark Fasheh 3080a9a84dSWengang Wang #define CREATE_TRACE_POINTS 3180a9a84dSWengang Wang #include "ocfs2_trace.h" 3280a9a84dSWengang Wang 33ccd979bdSMark Fasheh #include <cluster/masklog.h> 34ccd979bdSMark Fasheh 35ccd979bdSMark Fasheh #include "ocfs2.h" 36ccd979bdSMark Fasheh 37ccd979bdSMark Fasheh /* this should be the only file to include a version 1 header */ 38ccd979bdSMark Fasheh #include "ocfs1_fs_compat.h" 39ccd979bdSMark Fasheh 40ccd979bdSMark Fasheh #include "alloc.h" 41a11f7e63SMark Fasheh #include "aops.h" 42d030cc97SJoel Becker #include "blockcheck.h" 43ccd979bdSMark Fasheh #include "dlmglue.h" 44ccd979bdSMark Fasheh #include "export.h" 45ccd979bdSMark Fasheh #include "extent_map.h" 46ccd979bdSMark Fasheh #include "heartbeat.h" 47ccd979bdSMark Fasheh #include "inode.h" 48ccd979bdSMark Fasheh #include "journal.h" 49ccd979bdSMark Fasheh #include "localalloc.h" 50ccd979bdSMark Fasheh #include "namei.h" 51ccd979bdSMark Fasheh #include "slot_map.h" 52ccd979bdSMark Fasheh #include "super.h" 53ccd979bdSMark Fasheh #include "sysfile.h" 54ccd979bdSMark Fasheh #include "uptodate.h" 55cf1d6c76STiger Yang #include "xattr.h" 569e33d69fSJan Kara #include "quota.h" 57374a263eSTao Ma #include "refcounttree.h" 58b89c5428STiger Yang #include "suballoc.h" 59ccd979bdSMark Fasheh 60ccd979bdSMark Fasheh #include "buffer_head_io.h" 61a849d468SGang He #include "filecheck.h" 62ccd979bdSMark Fasheh 631a5c4e2aSFabian Frederick static struct kmem_cache *ocfs2_inode_cachep; 649e33d69fSJan Kara struct kmem_cache *ocfs2_dquot_cachep; 659e33d69fSJan Kara struct kmem_cache *ocfs2_qf_chunk_cachep; 66ccd979bdSMark Fasheh 671a5c4e2aSFabian Frederick static struct dentry *ocfs2_debugfs_root; 68ccd979bdSMark Fasheh 69ccd979bdSMark Fasheh MODULE_AUTHOR("Oracle"); 70ccd979bdSMark Fasheh MODULE_LICENSE("GPL"); 71ff8fb335SGoldwyn Rodrigues MODULE_DESCRIPTION("OCFS2 cluster file system"); 72ccd979bdSMark Fasheh 73c0123adeSTiger Yang struct mount_options 74c0123adeSTiger Yang { 75d147b3d6SMark Fasheh unsigned long commit_interval; 76c0123adeSTiger Yang unsigned long mount_opt; 77c0123adeSTiger Yang unsigned int atime_quantum; 7838d51b2dSJunxiao Bi unsigned short slot; 7973c8a800SMark Fasheh int localalloc_opt; 80d02f00ccSMark Fasheh unsigned int resv_level; 8183f92318SMark Fasheh int dir_resv_level; 82b61817e1SJoel Becker char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; 83c0123adeSTiger Yang }; 84c0123adeSTiger Yang 85ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, char *options, 86c0123adeSTiger Yang struct mount_options *mopt, 87baf4661aSSunil Mushran int is_remount); 885297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 895297aad8SJan Kara struct mount_options *options); 9034c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root); 91ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb); 92ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb); 93ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data); 94ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); 95ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void); 96ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void); 97ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb); 98ccd979bdSMark Fasheh 99726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); 100ccd979bdSMark Fasheh 101ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait); 102ccd979bdSMark Fasheh 103ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); 104ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); 105bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb); 106ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb); 107ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 108ccd979bdSMark Fasheh struct buffer_head *bh, 10973be192bSJoel Becker u32 sectsize, 11073be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 111ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 112ccd979bdSMark Fasheh struct buffer_head *bh, 11373be192bSJoel Becker int sector_size, 11473be192bSJoel Becker struct ocfs2_blockcheck_stats *stats); 115ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 116ccd979bdSMark Fasheh struct buffer_head **bh, 117ccd979bdSMark Fasheh int block, 118ccd979bdSMark Fasheh int sect_size); 119ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb); 120e91b9194SAl Viro static void ocfs2_free_inode(struct inode *inode); 12119ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); 12219ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb); 12319ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb); 124ccd979bdSMark Fasheh 1251c92ec67SJan Kara static struct dquot **ocfs2_get_dquots(struct inode *inode) 1261c92ec67SJan Kara { 1271c92ec67SJan Kara return OCFS2_I(inode)->i_dquot; 1281c92ec67SJan Kara } 1291c92ec67SJan Kara 130ee9b6d61SJosef 'Jeff' Sipek static const struct super_operations ocfs2_sops = { 131ccd979bdSMark Fasheh .statfs = ocfs2_statfs, 132ccd979bdSMark Fasheh .alloc_inode = ocfs2_alloc_inode, 133e91b9194SAl Viro .free_inode = ocfs2_free_inode, 134ccd979bdSMark Fasheh .drop_inode = ocfs2_drop_inode, 135066d92dcSAl Viro .evict_inode = ocfs2_evict_inode, 136ccd979bdSMark Fasheh .sync_fs = ocfs2_sync_fs, 137ccd979bdSMark Fasheh .put_super = ocfs2_put_super, 138ccd979bdSMark Fasheh .remount_fs = ocfs2_remount, 139d550071cSSunil Mushran .show_options = ocfs2_show_options, 1409e33d69fSJan Kara .quota_read = ocfs2_quota_read, 1419e33d69fSJan Kara .quota_write = ocfs2_quota_write, 1421c92ec67SJan Kara .get_dquots = ocfs2_get_dquots, 143ccd979bdSMark Fasheh }; 144ccd979bdSMark Fasheh 145ccd979bdSMark Fasheh enum { 146ccd979bdSMark Fasheh Opt_barrier, 147ccd979bdSMark Fasheh Opt_err_panic, 148ccd979bdSMark Fasheh Opt_err_ro, 149ccd979bdSMark Fasheh Opt_intr, 150ccd979bdSMark Fasheh Opt_nointr, 151ccd979bdSMark Fasheh Opt_hb_none, 152ccd979bdSMark Fasheh Opt_hb_local, 1532c442719SSunil Mushran Opt_hb_global, 154ccd979bdSMark Fasheh Opt_data_ordered, 155ccd979bdSMark Fasheh Opt_data_writeback, 1567f1a37e3STiger Yang Opt_atime_quantum, 157baf4661aSSunil Mushran Opt_slot, 158d147b3d6SMark Fasheh Opt_commit, 1592fbe8d1eSSunil Mushran Opt_localalloc, 16053fc622bSMark Fasheh Opt_localflocks, 161b61817e1SJoel Becker Opt_stack, 162cf1d6c76STiger Yang Opt_user_xattr, 163cf1d6c76STiger Yang Opt_nouser_xattr, 16412462f1dSJoel Becker Opt_inode64, 165a68979b8STiger Yang Opt_acl, 166a68979b8STiger Yang Opt_noacl, 16719ece546SJan Kara Opt_usrquota, 16819ece546SJan Kara Opt_grpquota, 1697bdb0d18STristan Ye Opt_coherency_buffered, 1707bdb0d18STristan Ye Opt_coherency_full, 171d02f00ccSMark Fasheh Opt_resv_level, 17283f92318SMark Fasheh Opt_dir_resv_level, 1731dfeb768Salex chen Opt_journal_async_commit, 1747d0fb914SGoldwyn Rodrigues Opt_err_cont, 175ccd979bdSMark Fasheh Opt_err, 176ccd979bdSMark Fasheh }; 177ccd979bdSMark Fasheh 178a447c093SSteven Whitehouse static const match_table_t tokens = { 179ccd979bdSMark Fasheh {Opt_barrier, "barrier=%u"}, 180ccd979bdSMark Fasheh {Opt_err_panic, "errors=panic"}, 181ccd979bdSMark Fasheh {Opt_err_ro, "errors=remount-ro"}, 182ccd979bdSMark Fasheh {Opt_intr, "intr"}, 183ccd979bdSMark Fasheh {Opt_nointr, "nointr"}, 184ccd979bdSMark Fasheh {Opt_hb_none, OCFS2_HB_NONE}, 185ccd979bdSMark Fasheh {Opt_hb_local, OCFS2_HB_LOCAL}, 1862c442719SSunil Mushran {Opt_hb_global, OCFS2_HB_GLOBAL}, 187ccd979bdSMark Fasheh {Opt_data_ordered, "data=ordered"}, 188ccd979bdSMark Fasheh {Opt_data_writeback, "data=writeback"}, 1897f1a37e3STiger Yang {Opt_atime_quantum, "atime_quantum=%u"}, 190baf4661aSSunil Mushran {Opt_slot, "preferred_slot=%u"}, 191d147b3d6SMark Fasheh {Opt_commit, "commit=%u"}, 1922fbe8d1eSSunil Mushran {Opt_localalloc, "localalloc=%d"}, 19353fc622bSMark Fasheh {Opt_localflocks, "localflocks"}, 194b61817e1SJoel Becker {Opt_stack, "cluster_stack=%s"}, 195cf1d6c76STiger Yang {Opt_user_xattr, "user_xattr"}, 196cf1d6c76STiger Yang {Opt_nouser_xattr, "nouser_xattr"}, 19712462f1dSJoel Becker {Opt_inode64, "inode64"}, 198a68979b8STiger Yang {Opt_acl, "acl"}, 199a68979b8STiger Yang {Opt_noacl, "noacl"}, 20019ece546SJan Kara {Opt_usrquota, "usrquota"}, 20119ece546SJan Kara {Opt_grpquota, "grpquota"}, 2027bdb0d18STristan Ye {Opt_coherency_buffered, "coherency=buffered"}, 2037bdb0d18STristan Ye {Opt_coherency_full, "coherency=full"}, 204d02f00ccSMark Fasheh {Opt_resv_level, "resv_level=%u"}, 20583f92318SMark Fasheh {Opt_dir_resv_level, "dir_resv_level=%u"}, 2061dfeb768Salex chen {Opt_journal_async_commit, "journal_async_commit"}, 2077d0fb914SGoldwyn Rodrigues {Opt_err_cont, "errors=continue"}, 208ccd979bdSMark Fasheh {Opt_err, NULL} 209ccd979bdSMark Fasheh }; 210ccd979bdSMark Fasheh 21150397507SSunil Mushran #ifdef CONFIG_DEBUG_FS 21250397507SSunil Mushran static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) 21350397507SSunil Mushran { 21450397507SSunil Mushran struct ocfs2_cluster_connection *cconn = osb->cconn; 21550397507SSunil Mushran struct ocfs2_recovery_map *rm = osb->recovery_map; 216df152c24SSunil Mushran struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; 217df152c24SSunil Mushran int i, out = 0; 218bfd97a03Sjiangyiwen unsigned long flags; 21950397507SSunil Mushran 220d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 22150397507SSunil Mushran "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", 22250397507SSunil Mushran "Device", osb->dev_str, osb->uuid_str, 22350397507SSunil Mushran osb->fs_generation, osb->vol_label); 22450397507SSunil Mushran 225d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 22650397507SSunil Mushran "%10s => State: %d Flags: 0x%lX\n", "Volume", 22750397507SSunil Mushran atomic_read(&osb->vol_state), osb->osb_flags); 22850397507SSunil Mushran 229d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 23050397507SSunil Mushran "%10s => Block: %lu Cluster: %d\n", "Sizes", 23150397507SSunil Mushran osb->sb->s_blocksize, osb->s_clustersize); 23250397507SSunil Mushran 233d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 23450397507SSunil Mushran "%10s => Compat: 0x%X Incompat: 0x%X " 23550397507SSunil Mushran "ROcompat: 0x%X\n", 23650397507SSunil Mushran "Features", osb->s_feature_compat, 23750397507SSunil Mushran osb->s_feature_incompat, osb->s_feature_ro_compat); 23850397507SSunil Mushran 239d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 24050397507SSunil Mushran "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", 24150397507SSunil Mushran osb->s_mount_opt, osb->s_atime_quantum); 24250397507SSunil Mushran 243c3d38840SSunil Mushran if (cconn) { 244d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 245c3d38840SSunil Mushran "%10s => Stack: %s Name: %*s " 246c3d38840SSunil Mushran "Version: %d.%d\n", "Cluster", 24750397507SSunil Mushran (*osb->osb_cluster_stack == '\0' ? 24850397507SSunil Mushran "o2cb" : osb->osb_cluster_stack), 24950397507SSunil Mushran cconn->cc_namelen, cconn->cc_name, 250c3d38840SSunil Mushran cconn->cc_version.pv_major, 251c3d38840SSunil Mushran cconn->cc_version.pv_minor); 252c3d38840SSunil Mushran } 25350397507SSunil Mushran 254bfd97a03Sjiangyiwen spin_lock_irqsave(&osb->dc_task_lock, flags); 255d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 25650397507SSunil Mushran "%10s => Pid: %d Count: %lu WakeSeq: %lu " 25750397507SSunil Mushran "WorkSeq: %lu\n", "DownCnvt", 258c3d38840SSunil Mushran (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), 259c3d38840SSunil Mushran osb->blocked_lock_count, osb->dc_wake_sequence, 260c3d38840SSunil Mushran osb->dc_work_sequence); 261bfd97a03Sjiangyiwen spin_unlock_irqrestore(&osb->dc_task_lock, flags); 26250397507SSunil Mushran 26350397507SSunil Mushran spin_lock(&osb->osb_lock); 264d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", 26550397507SSunil Mushran "Recovery", 26650397507SSunil Mushran (osb->recovery_thread_task ? 26750397507SSunil Mushran task_pid_nr(osb->recovery_thread_task) : -1)); 26850397507SSunil Mushran if (rm->rm_used == 0) 269d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, " None\n"); 27050397507SSunil Mushran else { 27150397507SSunil Mushran for (i = 0; i < rm->rm_used; i++) 272d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, " %d", 27350397507SSunil Mushran rm->rm_entries[i]); 274d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "\n"); 27550397507SSunil Mushran } 27650397507SSunil Mushran spin_unlock(&osb->osb_lock); 27750397507SSunil Mushran 278d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 2798fa9d17fSGoldwyn Rodrigues "%10s => Pid: %d Interval: %lu\n", "Commit", 280c3d38840SSunil Mushran (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), 2818fa9d17fSGoldwyn Rodrigues osb->osb_commit_interval); 28250397507SSunil Mushran 283d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 284c3d38840SSunil Mushran "%10s => State: %d TxnId: %lu NumTxns: %d\n", 28550397507SSunil Mushran "Journal", osb->journal->j_state, 286c3d38840SSunil Mushran osb->journal->j_trans_id, 287c3d38840SSunil Mushran atomic_read(&osb->journal->j_num_trans)); 28850397507SSunil Mushran 289d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 29050397507SSunil Mushran "%10s => GlobalAllocs: %d LocalAllocs: %d " 29150397507SSunil Mushran "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", 29250397507SSunil Mushran "Stats", 29350397507SSunil Mushran atomic_read(&osb->alloc_stats.bitmap_data), 29450397507SSunil Mushran atomic_read(&osb->alloc_stats.local_data), 29550397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_allocs), 29650397507SSunil Mushran atomic_read(&osb->alloc_stats.moves), 29750397507SSunil Mushran atomic_read(&osb->alloc_stats.bg_extends)); 29850397507SSunil Mushran 299d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 30050397507SSunil Mushran "%10s => State: %u Descriptor: %llu Size: %u bits " 30150397507SSunil Mushran "Default: %u bits\n", 30250397507SSunil Mushran "LocalAlloc", osb->local_alloc_state, 30350397507SSunil Mushran (unsigned long long)osb->la_last_gd, 30450397507SSunil Mushran osb->local_alloc_bits, osb->local_alloc_default_bits); 30550397507SSunil Mushran 30650397507SSunil Mushran spin_lock(&osb->osb_lock); 307d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 308b89c5428STiger Yang "%10s => InodeSlot: %d StolenInodes: %d, " 309b89c5428STiger Yang "MetaSlot: %d StolenMeta: %d\n", "Steal", 31050397507SSunil Mushran osb->s_inode_steal_slot, 311b89c5428STiger Yang atomic_read(&osb->s_num_inodes_stolen), 312b89c5428STiger Yang osb->s_meta_steal_slot, 313b89c5428STiger Yang atomic_read(&osb->s_num_meta_stolen)); 31450397507SSunil Mushran spin_unlock(&osb->osb_lock); 31550397507SSunil Mushran 316d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "OrphanScan => "); 317d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "Local: %u Global: %u ", 318df152c24SSunil Mushran os->os_count, os->os_seqno); 319d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, " Last Scan: "); 320df152c24SSunil Mushran if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) 321d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "Disabled\n"); 322df152c24SSunil Mushran else 323d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "%lu seconds ago\n", 324395627b0SDeepa Dinamani (unsigned long)(ktime_get_seconds() - os->os_scantime)); 325df152c24SSunil Mushran 326d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, "%10s => %3s %10s\n", 32750397507SSunil Mushran "Slots", "Num", "RecoGen"); 32850397507SSunil Mushran for (i = 0; i < osb->max_slots; ++i) { 329d293d3afSTakashi Iwai out += scnprintf(buf + out, len - out, 33050397507SSunil Mushran "%10s %c %3d %10d\n", 33150397507SSunil Mushran " ", 33250397507SSunil Mushran (i == osb->slot_num ? '*' : ' '), 33350397507SSunil Mushran i, osb->slot_recovery_generations[i]); 33450397507SSunil Mushran } 33550397507SSunil Mushran 33650397507SSunil Mushran return out; 33750397507SSunil Mushran } 33850397507SSunil Mushran 33950397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 34050397507SSunil Mushran { 34150397507SSunil Mushran struct ocfs2_super *osb = inode->i_private; 34250397507SSunil Mushran char *buf = NULL; 34350397507SSunil Mushran 34450397507SSunil Mushran buf = kmalloc(PAGE_SIZE, GFP_KERNEL); 34550397507SSunil Mushran if (!buf) 34650397507SSunil Mushran goto bail; 34750397507SSunil Mushran 34850397507SSunil Mushran i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); 34950397507SSunil Mushran 35050397507SSunil Mushran file->private_data = buf; 35150397507SSunil Mushran 35250397507SSunil Mushran return 0; 35350397507SSunil Mushran bail: 35450397507SSunil Mushran return -ENOMEM; 35550397507SSunil Mushran } 35650397507SSunil Mushran 35750397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 35850397507SSunil Mushran { 35950397507SSunil Mushran kfree(file->private_data); 36050397507SSunil Mushran return 0; 36150397507SSunil Mushran } 36250397507SSunil Mushran 36350397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 36450397507SSunil Mushran size_t nbytes, loff_t *ppos) 36550397507SSunil Mushran { 36650397507SSunil Mushran return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, 36750397507SSunil Mushran i_size_read(file->f_mapping->host)); 36850397507SSunil Mushran } 36950397507SSunil Mushran #else 37050397507SSunil Mushran static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) 37150397507SSunil Mushran { 37250397507SSunil Mushran return 0; 37350397507SSunil Mushran } 37450397507SSunil Mushran static int ocfs2_debug_release(struct inode *inode, struct file *file) 37550397507SSunil Mushran { 37650397507SSunil Mushran return 0; 37750397507SSunil Mushran } 37850397507SSunil Mushran static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, 37950397507SSunil Mushran size_t nbytes, loff_t *ppos) 38050397507SSunil Mushran { 38150397507SSunil Mushran return 0; 38250397507SSunil Mushran } 38350397507SSunil Mushran #endif /* CONFIG_DEBUG_FS */ 38450397507SSunil Mushran 385828c0950SAlexey Dobriyan static const struct file_operations ocfs2_osb_debug_fops = { 38650397507SSunil Mushran .open = ocfs2_osb_debug_open, 38750397507SSunil Mushran .release = ocfs2_debug_release, 38850397507SSunil Mushran .read = ocfs2_debug_read, 38950397507SSunil Mushran .llseek = generic_file_llseek, 39050397507SSunil Mushran }; 39150397507SSunil Mushran 392ccd979bdSMark Fasheh static int ocfs2_sync_fs(struct super_block *sb, int wait) 393ccd979bdSMark Fasheh { 394bddb8eb3SDenis Cheng int status; 395ccd979bdSMark Fasheh tid_t target; 396ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 397ccd979bdSMark Fasheh 398ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 399ccd979bdSMark Fasheh return -EROFS; 400ccd979bdSMark Fasheh 401ccd979bdSMark Fasheh if (wait) { 402ccd979bdSMark Fasheh status = ocfs2_flush_truncate_log(osb); 403ccd979bdSMark Fasheh if (status < 0) 404ccd979bdSMark Fasheh mlog_errno(status); 405ccd979bdSMark Fasheh } else { 406ccd979bdSMark Fasheh ocfs2_schedule_truncate_log_flush(osb, 0); 407ccd979bdSMark Fasheh } 408ccd979bdSMark Fasheh 4091119d3c0Spiaojun if (jbd2_journal_start_commit(osb->journal->j_journal, 4102b4e30fbSJoel Becker &target)) { 411ccd979bdSMark Fasheh if (wait) 4121119d3c0Spiaojun jbd2_log_wait_commit(osb->journal->j_journal, 413ccd979bdSMark Fasheh target); 414ccd979bdSMark Fasheh } 415ccd979bdSMark Fasheh return 0; 416ccd979bdSMark Fasheh } 417ccd979bdSMark Fasheh 4181a224ad1SJan Kara static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) 4191a224ad1SJan Kara { 4201a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) 4211a224ad1SJan Kara && (ino == USER_QUOTA_SYSTEM_INODE 4221a224ad1SJan Kara || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) 4231a224ad1SJan Kara return 0; 4241a224ad1SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) 4251a224ad1SJan Kara && (ino == GROUP_QUOTA_SYSTEM_INODE 4261a224ad1SJan Kara || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) 4271a224ad1SJan Kara return 0; 4281a224ad1SJan Kara return 1; 4291a224ad1SJan Kara } 4301a224ad1SJan Kara 431ccd979bdSMark Fasheh static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) 432ccd979bdSMark Fasheh { 433ccd979bdSMark Fasheh struct inode *new = NULL; 434ccd979bdSMark Fasheh int status = 0; 435ccd979bdSMark Fasheh int i; 436ccd979bdSMark Fasheh 4375fa0613eSJan Kara new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 438ccd979bdSMark Fasheh if (IS_ERR(new)) { 439ccd979bdSMark Fasheh status = PTR_ERR(new); 440ccd979bdSMark Fasheh mlog_errno(status); 441ccd979bdSMark Fasheh goto bail; 442ccd979bdSMark Fasheh } 443ccd979bdSMark Fasheh osb->root_inode = new; 444ccd979bdSMark Fasheh 4455fa0613eSJan Kara new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); 446ccd979bdSMark Fasheh if (IS_ERR(new)) { 447ccd979bdSMark Fasheh status = PTR_ERR(new); 448ccd979bdSMark Fasheh mlog_errno(status); 449ccd979bdSMark Fasheh goto bail; 450ccd979bdSMark Fasheh } 451ccd979bdSMark Fasheh osb->sys_root_inode = new; 452ccd979bdSMark Fasheh 453ccd979bdSMark Fasheh for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; 454ccd979bdSMark Fasheh i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { 4551a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4561a224ad1SJan Kara continue; 457ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 458ccd979bdSMark Fasheh if (!new) { 459ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 460025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 461ccd979bdSMark Fasheh mlog_errno(status); 462ccd979bdSMark Fasheh mlog(ML_ERROR, "Unable to load system inode %d, " 463ccd979bdSMark Fasheh "possibly corrupt fs?", i); 464ccd979bdSMark Fasheh goto bail; 465ccd979bdSMark Fasheh } 466ccd979bdSMark Fasheh // the array now has one ref, so drop this one 467ccd979bdSMark Fasheh iput(new); 468ccd979bdSMark Fasheh } 469ccd979bdSMark Fasheh 470ccd979bdSMark Fasheh bail: 471c1e8d35eSTao Ma if (status) 472c1e8d35eSTao Ma mlog_errno(status); 473ccd979bdSMark Fasheh return status; 474ccd979bdSMark Fasheh } 475ccd979bdSMark Fasheh 476ccd979bdSMark Fasheh static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) 477ccd979bdSMark Fasheh { 478ccd979bdSMark Fasheh struct inode *new = NULL; 479ccd979bdSMark Fasheh int status = 0; 480ccd979bdSMark Fasheh int i; 481ccd979bdSMark Fasheh 482ccd979bdSMark Fasheh for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; 483ccd979bdSMark Fasheh i < NUM_SYSTEM_INODES; 484ccd979bdSMark Fasheh i++) { 4851a224ad1SJan Kara if (!ocfs2_need_system_inode(osb, i)) 4861a224ad1SJan Kara continue; 487ccd979bdSMark Fasheh new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); 488ccd979bdSMark Fasheh if (!new) { 489ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 490025bcbdeSpiaojun status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL; 491ccd979bdSMark Fasheh mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", 492ccd979bdSMark Fasheh status, i, osb->slot_num); 493ccd979bdSMark Fasheh goto bail; 494ccd979bdSMark Fasheh } 495ccd979bdSMark Fasheh /* the array now has one ref, so drop this one */ 496ccd979bdSMark Fasheh iput(new); 497ccd979bdSMark Fasheh } 498ccd979bdSMark Fasheh 499ccd979bdSMark Fasheh bail: 500c1e8d35eSTao Ma if (status) 501c1e8d35eSTao Ma mlog_errno(status); 502ccd979bdSMark Fasheh return status; 503ccd979bdSMark Fasheh } 504ccd979bdSMark Fasheh 505bddb8eb3SDenis Cheng static void ocfs2_release_system_inodes(struct ocfs2_super *osb) 506ccd979bdSMark Fasheh { 507bddb8eb3SDenis Cheng int i; 508ccd979bdSMark Fasheh struct inode *inode; 509ccd979bdSMark Fasheh 510b4d693fcSTao Ma for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { 511b4d693fcSTao Ma inode = osb->global_system_inodes[i]; 512ccd979bdSMark Fasheh if (inode) { 513ccd979bdSMark Fasheh iput(inode); 514b4d693fcSTao Ma osb->global_system_inodes[i] = NULL; 515ccd979bdSMark Fasheh } 516ccd979bdSMark Fasheh } 517ccd979bdSMark Fasheh 518ccd979bdSMark Fasheh inode = osb->sys_root_inode; 519ccd979bdSMark Fasheh if (inode) { 520ccd979bdSMark Fasheh iput(inode); 521ccd979bdSMark Fasheh osb->sys_root_inode = NULL; 522ccd979bdSMark Fasheh } 523ccd979bdSMark Fasheh 524ccd979bdSMark Fasheh inode = osb->root_inode; 525ccd979bdSMark Fasheh if (inode) { 526ccd979bdSMark Fasheh iput(inode); 527ccd979bdSMark Fasheh osb->root_inode = NULL; 528ccd979bdSMark Fasheh } 529ccd979bdSMark Fasheh 530b4d693fcSTao Ma if (!osb->local_system_inodes) 531c1e8d35eSTao Ma return; 532b4d693fcSTao Ma 533b4d693fcSTao Ma for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { 534b4d693fcSTao Ma if (osb->local_system_inodes[i]) { 535b4d693fcSTao Ma iput(osb->local_system_inodes[i]); 536b4d693fcSTao Ma osb->local_system_inodes[i] = NULL; 537b4d693fcSTao Ma } 538b4d693fcSTao Ma } 539b4d693fcSTao Ma 540b4d693fcSTao Ma kfree(osb->local_system_inodes); 541b4d693fcSTao Ma osb->local_system_inodes = NULL; 542ccd979bdSMark Fasheh } 543ccd979bdSMark Fasheh 544ccd979bdSMark Fasheh /* We're allocating fs objects, use GFP_NOFS */ 545ccd979bdSMark Fasheh static struct inode *ocfs2_alloc_inode(struct super_block *sb) 546ccd979bdSMark Fasheh { 547ccd979bdSMark Fasheh struct ocfs2_inode_info *oi; 548ccd979bdSMark Fasheh 549fd60b288SMuchun Song oi = alloc_inode_sb(sb, ocfs2_inode_cachep, GFP_NOFS); 550ccd979bdSMark Fasheh if (!oi) 551ccd979bdSMark Fasheh return NULL; 552ccd979bdSMark Fasheh 5532931cdcbSDarrick J. Wong oi->i_sync_tid = 0; 5542931cdcbSDarrick J. Wong oi->i_datasync_tid = 0; 5551c92ec67SJan Kara memset(&oi->i_dquot, 0, sizeof(oi->i_dquot)); 5562931cdcbSDarrick J. Wong 5572b4e30fbSJoel Becker jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); 558ccd979bdSMark Fasheh return &oi->vfs_inode; 559ccd979bdSMark Fasheh } 560ccd979bdSMark Fasheh 561e91b9194SAl Viro static void ocfs2_free_inode(struct inode *inode) 562fa0d7e3dSNick Piggin { 563fa0d7e3dSNick Piggin kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); 564fa0d7e3dSNick Piggin } 565fa0d7e3dSNick Piggin 5665a254031SMark Fasheh static unsigned long long ocfs2_max_file_offset(unsigned int bbits, 5675a254031SMark Fasheh unsigned int cbits) 568ccd979bdSMark Fasheh { 5695a254031SMark Fasheh unsigned int bytes = 1 << cbits; 5705a254031SMark Fasheh unsigned int trim = bytes; 5715a254031SMark Fasheh unsigned int bitshift = 32; 572ccd979bdSMark Fasheh 5735a254031SMark Fasheh /* 5745a254031SMark Fasheh * i_size and all block offsets in ocfs2 are always 64 bits 5755a254031SMark Fasheh * wide. i_clusters is 32 bits, in cluster-sized units. So on 5765a254031SMark Fasheh * 64 bit platforms, cluster size will be the limiting factor. 577ccd979bdSMark Fasheh */ 578ccd979bdSMark Fasheh 579ccd979bdSMark Fasheh #if BITS_PER_LONG == 32 5802ecd05aeSAlexey Dobriyan BUILD_BUG_ON(sizeof(sector_t) != 8); 5815a254031SMark Fasheh /* 5825a254031SMark Fasheh * We might be limited by page cache size. 5835a254031SMark Fasheh */ 58409cbfeafSKirill A. Shutemov if (bytes > PAGE_SIZE) { 58509cbfeafSKirill A. Shutemov bytes = PAGE_SIZE; 5865a254031SMark Fasheh trim = 1; 5875a254031SMark Fasheh /* 5885a254031SMark Fasheh * Shift by 31 here so that we don't get larger than 5895a254031SMark Fasheh * MAX_LFS_FILESIZE 5905a254031SMark Fasheh */ 5915a254031SMark Fasheh bitshift = 31; 5925a254031SMark Fasheh } 593ccd979bdSMark Fasheh #endif 594ccd979bdSMark Fasheh 5955a254031SMark Fasheh /* 5965a254031SMark Fasheh * Trim by a whole cluster when we can actually approach the 5975a254031SMark Fasheh * on-disk limits. Otherwise we can overflow i_clusters when 5985a254031SMark Fasheh * an extent start is at the max offset. 5995a254031SMark Fasheh */ 6005a254031SMark Fasheh return (((unsigned long long)bytes) << bitshift) - trim; 601ccd979bdSMark Fasheh } 602ccd979bdSMark Fasheh 603ccd979bdSMark Fasheh static int ocfs2_remount(struct super_block *sb, int *flags, char *data) 604ccd979bdSMark Fasheh { 605ccd979bdSMark Fasheh int incompat_features; 606ccd979bdSMark Fasheh int ret = 0; 607c0123adeSTiger Yang struct mount_options parsed_options; 608ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 6092c442719SSunil Mushran u32 tmp; 610ccd979bdSMark Fasheh 61102b9984dSTheodore Ts'o sync_filesystem(sb); 61202b9984dSTheodore Ts'o 6135297aad8SJan Kara if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || 6145297aad8SJan Kara !ocfs2_check_set_options(sb, &parsed_options)) { 615ccd979bdSMark Fasheh ret = -EINVAL; 616ccd979bdSMark Fasheh goto out; 617ccd979bdSMark Fasheh } 618ccd979bdSMark Fasheh 6192c442719SSunil Mushran tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | 6202c442719SSunil Mushran OCFS2_MOUNT_HB_NONE; 6212c442719SSunil Mushran if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { 622ccd979bdSMark Fasheh ret = -EINVAL; 623ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); 624ccd979bdSMark Fasheh goto out; 625ccd979bdSMark Fasheh } 626ccd979bdSMark Fasheh 627ccd979bdSMark Fasheh if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != 628c0123adeSTiger Yang (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { 629ccd979bdSMark Fasheh ret = -EINVAL; 630ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot change data mode on remount\n"); 631ccd979bdSMark Fasheh goto out; 632ccd979bdSMark Fasheh } 633ccd979bdSMark Fasheh 63412462f1dSJoel Becker /* Probably don't want this on remount; it might 63512462f1dSJoel Becker * mess with other nodes */ 63612462f1dSJoel Becker if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && 63712462f1dSJoel Becker (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { 63812462f1dSJoel Becker ret = -EINVAL; 63912462f1dSJoel Becker mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); 64012462f1dSJoel Becker goto out; 64112462f1dSJoel Becker } 64212462f1dSJoel Becker 643ccd979bdSMark Fasheh /* We're going to/from readonly mode. */ 6441751e8a6SLinus Torvalds if ((bool)(*flags & SB_RDONLY) != sb_rdonly(sb)) { 64519ece546SJan Kara /* Disable quota accounting before remounting RO */ 6461751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 64719ece546SJan Kara ret = ocfs2_susp_quotas(osb, 0); 64819ece546SJan Kara if (ret < 0) 64919ece546SJan Kara goto out; 65019ece546SJan Kara } 651ccd979bdSMark Fasheh /* Lock here so the check of HARD_RO and the potential 652ccd979bdSMark Fasheh * setting of SOFT_RO is atomic. */ 653ccd979bdSMark Fasheh spin_lock(&osb->osb_lock); 654ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_HARD_RO) { 655ccd979bdSMark Fasheh mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); 656ccd979bdSMark Fasheh ret = -EROFS; 657ccd979bdSMark Fasheh goto unlock_osb; 658ccd979bdSMark Fasheh } 659ccd979bdSMark Fasheh 6601751e8a6SLinus Torvalds if (*flags & SB_RDONLY) { 6611751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 662ccd979bdSMark Fasheh osb->osb_flags |= OCFS2_OSB_SOFT_RO; 663ccd979bdSMark Fasheh } else { 664ccd979bdSMark Fasheh if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { 665ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR " 666ccd979bdSMark Fasheh "filesystem due to previous errors.\n"); 667ccd979bdSMark Fasheh ret = -EROFS; 668ccd979bdSMark Fasheh goto unlock_osb; 669ccd979bdSMark Fasheh } 670ccd979bdSMark Fasheh incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); 671ccd979bdSMark Fasheh if (incompat_features) { 672ccd979bdSMark Fasheh mlog(ML_ERROR, "Cannot remount RDWR because " 673ccd979bdSMark Fasheh "of unsupported optional features " 674ccd979bdSMark Fasheh "(%x).\n", incompat_features); 675ccd979bdSMark Fasheh ret = -EINVAL; 676ccd979bdSMark Fasheh goto unlock_osb; 677ccd979bdSMark Fasheh } 6781751e8a6SLinus Torvalds sb->s_flags &= ~SB_RDONLY; 679ccd979bdSMark Fasheh osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; 680ccd979bdSMark Fasheh } 68132a42d39STao Ma trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); 682ccd979bdSMark Fasheh unlock_osb: 683ccd979bdSMark Fasheh spin_unlock(&osb->osb_lock); 68419ece546SJan Kara /* Enable quota accounting after remounting RW */ 6851751e8a6SLinus Torvalds if (!ret && !(*flags & SB_RDONLY)) { 68619ece546SJan Kara if (sb_any_quota_suspended(sb)) 68719ece546SJan Kara ret = ocfs2_susp_quotas(osb, 1); 68819ece546SJan Kara else 68919ece546SJan Kara ret = ocfs2_enable_quotas(osb); 69019ece546SJan Kara if (ret < 0) { 69119ece546SJan Kara /* Return back changes... */ 69219ece546SJan Kara spin_lock(&osb->osb_lock); 6931751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 69419ece546SJan Kara osb->osb_flags |= OCFS2_OSB_SOFT_RO; 69519ece546SJan Kara spin_unlock(&osb->osb_lock); 69619ece546SJan Kara goto out; 69719ece546SJan Kara } 69819ece546SJan Kara } 699ccd979bdSMark Fasheh } 700ccd979bdSMark Fasheh 701ccd979bdSMark Fasheh if (!ret) { 702ccd979bdSMark Fasheh /* Only save off the new mount options in case of a successful 703ccd979bdSMark Fasheh * remount. */ 704c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 705c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 706c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 707d147b3d6SMark Fasheh if (parsed_options.commit_interval) 708d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 709e001e796SMark Fasheh 710e001e796SMark Fasheh if (!ocfs2_is_hard_readonly(osb)) 711e001e796SMark Fasheh ocfs2_set_journal_params(osb); 71257b09bb5SJan Kara 7131751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | 71457b09bb5SJan Kara ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? 7151751e8a6SLinus Torvalds SB_POSIXACL : 0); 716ccd979bdSMark Fasheh } 717ccd979bdSMark Fasheh out: 718ccd979bdSMark Fasheh return ret; 719ccd979bdSMark Fasheh } 720ccd979bdSMark Fasheh 721ccd979bdSMark Fasheh static int ocfs2_sb_probe(struct super_block *sb, 722ccd979bdSMark Fasheh struct buffer_head **bh, 72373be192bSJoel Becker int *sector_size, 72473be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 725ccd979bdSMark Fasheh { 726bddb8eb3SDenis Cheng int status, tmpstat; 727ccd979bdSMark Fasheh struct ocfs1_vol_disk_hdr *hdr; 728ccd979bdSMark Fasheh struct ocfs2_dinode *di; 729ccd979bdSMark Fasheh int blksize; 730ccd979bdSMark Fasheh 731ccd979bdSMark Fasheh *bh = NULL; 732ccd979bdSMark Fasheh 733ccd979bdSMark Fasheh /* may be > 512 */ 734e1defc4fSMartin K. Petersen *sector_size = bdev_logical_block_size(sb->s_bdev); 735ccd979bdSMark Fasheh if (*sector_size > OCFS2_MAX_BLOCKSIZE) { 736ccd979bdSMark Fasheh mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", 737ccd979bdSMark Fasheh *sector_size, OCFS2_MAX_BLOCKSIZE); 738ccd979bdSMark Fasheh status = -EINVAL; 739ccd979bdSMark Fasheh goto bail; 740ccd979bdSMark Fasheh } 741ccd979bdSMark Fasheh 742ccd979bdSMark Fasheh /* Can this really happen? */ 743ccd979bdSMark Fasheh if (*sector_size < OCFS2_MIN_BLOCKSIZE) 744ccd979bdSMark Fasheh *sector_size = OCFS2_MIN_BLOCKSIZE; 745ccd979bdSMark Fasheh 746ccd979bdSMark Fasheh /* check block zero for old format */ 747ccd979bdSMark Fasheh status = ocfs2_get_sector(sb, bh, 0, *sector_size); 748ccd979bdSMark Fasheh if (status < 0) { 749ccd979bdSMark Fasheh mlog_errno(status); 750ccd979bdSMark Fasheh goto bail; 751ccd979bdSMark Fasheh } 752ccd979bdSMark Fasheh hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; 753ccd979bdSMark Fasheh if (hdr->major_version == OCFS1_MAJOR_VERSION) { 754ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible version: %u.%u\n", 755ccd979bdSMark Fasheh hdr->major_version, hdr->minor_version); 756ccd979bdSMark Fasheh status = -EINVAL; 757ccd979bdSMark Fasheh } 758ccd979bdSMark Fasheh if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, 759ccd979bdSMark Fasheh strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { 760ccd979bdSMark Fasheh mlog(ML_ERROR, "incompatible volume signature: %8s\n", 761ccd979bdSMark Fasheh hdr->signature); 762ccd979bdSMark Fasheh status = -EINVAL; 763ccd979bdSMark Fasheh } 764ccd979bdSMark Fasheh brelse(*bh); 765ccd979bdSMark Fasheh *bh = NULL; 766ccd979bdSMark Fasheh if (status < 0) { 767ccd979bdSMark Fasheh mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " 768ccd979bdSMark Fasheh "upgraded before mounting with ocfs v2\n"); 769ccd979bdSMark Fasheh goto bail; 770ccd979bdSMark Fasheh } 771ccd979bdSMark Fasheh 772ccd979bdSMark Fasheh /* 773ccd979bdSMark Fasheh * Now check at magic offset for 512, 1024, 2048, 4096 774ccd979bdSMark Fasheh * blocksizes. 4096 is the maximum blocksize because it is 775ccd979bdSMark Fasheh * the minimum clustersize. 776ccd979bdSMark Fasheh */ 777ccd979bdSMark Fasheh status = -EINVAL; 778ccd979bdSMark Fasheh for (blksize = *sector_size; 779ccd979bdSMark Fasheh blksize <= OCFS2_MAX_BLOCKSIZE; 780ccd979bdSMark Fasheh blksize <<= 1) { 781ccd979bdSMark Fasheh tmpstat = ocfs2_get_sector(sb, bh, 782ccd979bdSMark Fasheh OCFS2_SUPER_BLOCK_BLKNO, 783ccd979bdSMark Fasheh blksize); 784ccd979bdSMark Fasheh if (tmpstat < 0) { 785ccd979bdSMark Fasheh status = tmpstat; 786ccd979bdSMark Fasheh mlog_errno(status); 787fb5cbe9eSJoel Becker break; 788ccd979bdSMark Fasheh } 789ccd979bdSMark Fasheh di = (struct ocfs2_dinode *) (*bh)->b_data; 79073be192bSJoel Becker memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); 7911c1d9793SJan Kara spin_lock_init(&stats->b_lock); 792fb5cbe9eSJoel Becker tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); 793fb5cbe9eSJoel Becker if (tmpstat < 0) { 794ccd979bdSMark Fasheh brelse(*bh); 795ccd979bdSMark Fasheh *bh = NULL; 796fb5cbe9eSJoel Becker } 797fb5cbe9eSJoel Becker if (tmpstat != -EAGAIN) { 798fb5cbe9eSJoel Becker status = tmpstat; 799ccd979bdSMark Fasheh break; 800ccd979bdSMark Fasheh } 801fb5cbe9eSJoel Becker } 802ccd979bdSMark Fasheh 803ccd979bdSMark Fasheh bail: 804ccd979bdSMark Fasheh return status; 805ccd979bdSMark Fasheh } 806ccd979bdSMark Fasheh 807c271c5c2SSunil Mushran static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) 808c271c5c2SSunil Mushran { 8092c442719SSunil Mushran u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; 8102c442719SSunil Mushran 8112c442719SSunil Mushran if (osb->s_mount_opt & hb_enabled) { 812c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) { 813c271c5c2SSunil Mushran mlog(ML_ERROR, "Cannot heartbeat on a locally " 814c271c5c2SSunil Mushran "mounted device.\n"); 815c271c5c2SSunil Mushran return -EINVAL; 816c271c5c2SSunil Mushran } 817b61817e1SJoel Becker if (ocfs2_userspace_stack(osb)) { 818b61817e1SJoel Becker mlog(ML_ERROR, "Userspace stack expected, but " 819b61817e1SJoel Becker "o2cb heartbeat arguments passed to mount\n"); 820b61817e1SJoel Becker return -EINVAL; 821b61817e1SJoel Becker } 8222c442719SSunil Mushran if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && 8232c442719SSunil Mushran !ocfs2_cluster_o2cb_global_heartbeat(osb)) || 8242c442719SSunil Mushran ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && 8252c442719SSunil Mushran ocfs2_cluster_o2cb_global_heartbeat(osb))) { 8262c442719SSunil Mushran mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); 8272c442719SSunil Mushran return -EINVAL; 8282c442719SSunil Mushran } 829b61817e1SJoel Becker } 830b61817e1SJoel Becker 8312c442719SSunil Mushran if (!(osb->s_mount_opt & hb_enabled)) { 832b61817e1SJoel Becker if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && 833b61817e1SJoel Becker !ocfs2_userspace_stack(osb)) { 834c271c5c2SSunil Mushran mlog(ML_ERROR, "Heartbeat has to be started to mount " 835c271c5c2SSunil Mushran "a read-write clustered device.\n"); 836c271c5c2SSunil Mushran return -EINVAL; 837c271c5c2SSunil Mushran } 838c271c5c2SSunil Mushran } 839c271c5c2SSunil Mushran 840c271c5c2SSunil Mushran return 0; 841c271c5c2SSunil Mushran } 842c271c5c2SSunil Mushran 843b61817e1SJoel Becker /* 844b61817e1SJoel Becker * If we're using a userspace stack, mount should have passed 845b61817e1SJoel Becker * a name that matches the disk. If not, mount should not 846b61817e1SJoel Becker * have passed a stack. 847b61817e1SJoel Becker */ 848b61817e1SJoel Becker static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, 849b61817e1SJoel Becker struct mount_options *mopt) 850b61817e1SJoel Becker { 851b61817e1SJoel Becker if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { 852b61817e1SJoel Becker mlog(ML_ERROR, 853b61817e1SJoel Becker "cluster stack passed to mount, but this filesystem " 854b61817e1SJoel Becker "does not support it\n"); 855b61817e1SJoel Becker return -EINVAL; 856b61817e1SJoel Becker } 857b61817e1SJoel Becker 858b61817e1SJoel Becker if (ocfs2_userspace_stack(osb) && 859b61817e1SJoel Becker strncmp(osb->osb_cluster_stack, mopt->cluster_stack, 860b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 861b61817e1SJoel Becker mlog(ML_ERROR, 862b61817e1SJoel Becker "cluster stack passed to mount (\"%s\") does not " 863b61817e1SJoel Becker "match the filesystem (\"%s\")\n", 864b61817e1SJoel Becker mopt->cluster_stack, 865b61817e1SJoel Becker osb->osb_cluster_stack); 866b61817e1SJoel Becker return -EINVAL; 867b61817e1SJoel Becker } 868b61817e1SJoel Becker 869b61817e1SJoel Becker return 0; 870b61817e1SJoel Becker } 871b61817e1SJoel Becker 87219ece546SJan Kara static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) 87319ece546SJan Kara { 87419ece546SJan Kara int type; 87519ece546SJan Kara struct super_block *sb = osb->sb; 87652362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 87752362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 87819ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 87919ece546SJan Kara int status = 0; 88019ece546SJan Kara 88152362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 88219ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 88319ece546SJan Kara continue; 88419ece546SJan Kara if (unsuspend) 8850f0dd62fSChristoph Hellwig status = dquot_resume(sb, type); 886eea7feb0SJan Kara else { 887eea7feb0SJan Kara struct ocfs2_mem_dqinfo *oinfo; 888eea7feb0SJan Kara 889eea7feb0SJan Kara /* Cancel periodic syncing before suspending */ 890eea7feb0SJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 891eea7feb0SJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 8920f0dd62fSChristoph Hellwig status = dquot_suspend(sb, type); 893eea7feb0SJan Kara } 89419ece546SJan Kara if (status < 0) 89519ece546SJan Kara break; 89619ece546SJan Kara } 89719ece546SJan Kara if (status < 0) 89819ece546SJan Kara mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " 89919ece546SJan Kara "remount (error = %d).\n", status); 90019ece546SJan Kara return status; 90119ece546SJan Kara } 90219ece546SJan Kara 90319ece546SJan Kara static int ocfs2_enable_quotas(struct ocfs2_super *osb) 90419ece546SJan Kara { 90552362810SJan Kara struct inode *inode[OCFS2_MAXQUOTAS] = { NULL, NULL }; 90619ece546SJan Kara struct super_block *sb = osb->sb; 90752362810SJan Kara unsigned int feature[OCFS2_MAXQUOTAS] = { 90852362810SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA, 90919ece546SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; 91052362810SJan Kara unsigned int ino[OCFS2_MAXQUOTAS] = { 91152362810SJan Kara LOCAL_USER_QUOTA_SYSTEM_INODE, 91219ece546SJan Kara LOCAL_GROUP_QUOTA_SYSTEM_INODE }; 91319ece546SJan Kara int status; 91419ece546SJan Kara int type; 91519ece546SJan Kara 91619ece546SJan Kara sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; 91752362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 91819ece546SJan Kara if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) 91919ece546SJan Kara continue; 92019ece546SJan Kara inode[type] = ocfs2_get_system_file_inode(osb, ino[type], 92119ece546SJan Kara osb->slot_num); 92219ece546SJan Kara if (!inode[type]) { 92319ece546SJan Kara status = -ENOENT; 92419ece546SJan Kara goto out_quota_off; 92519ece546SJan Kara } 9267212b95eSJan Kara status = dquot_load_quota_inode(inode[type], type, QFMT_OCFS2, 92719ece546SJan Kara DQUOT_USAGE_ENABLED); 92819ece546SJan Kara if (status < 0) 92919ece546SJan Kara goto out_quota_off; 93019ece546SJan Kara } 93119ece546SJan Kara 93252362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 93319ece546SJan Kara iput(inode[type]); 93419ece546SJan Kara return 0; 93519ece546SJan Kara out_quota_off: 93619ece546SJan Kara ocfs2_disable_quotas(osb); 93752362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) 93819ece546SJan Kara iput(inode[type]); 93919ece546SJan Kara mlog_errno(status); 94019ece546SJan Kara return status; 94119ece546SJan Kara } 94219ece546SJan Kara 94319ece546SJan Kara static void ocfs2_disable_quotas(struct ocfs2_super *osb) 94419ece546SJan Kara { 94519ece546SJan Kara int type; 94619ece546SJan Kara struct inode *inode; 94719ece546SJan Kara struct super_block *sb = osb->sb; 948c06bcbfaSJan Kara struct ocfs2_mem_dqinfo *oinfo; 94919ece546SJan Kara 95019ece546SJan Kara /* We mostly ignore errors in this function because there's not much 95119ece546SJan Kara * we can do when we see them */ 95252362810SJan Kara for (type = 0; type < OCFS2_MAXQUOTAS; type++) { 95319ece546SJan Kara if (!sb_has_quota_loaded(sb, type)) 95419ece546SJan Kara continue; 955*50d92788SLuís Henriques if (!sb_has_quota_suspended(sb, type)) { 956c06bcbfaSJan Kara oinfo = sb_dqinfo(sb, type)->dqi_priv; 957c06bcbfaSJan Kara cancel_delayed_work_sync(&oinfo->dqi_sync_work); 958*50d92788SLuís Henriques } 95919ece546SJan Kara inode = igrab(sb->s_dquot.files[type]); 96019ece546SJan Kara /* Turn off quotas. This will remove all dquot structures from 96119ece546SJan Kara * memory and so they will be automatically synced to global 96219ece546SJan Kara * quota files */ 9630f0dd62fSChristoph Hellwig dquot_disable(sb, type, DQUOT_USAGE_ENABLED | 96419ece546SJan Kara DQUOT_LIMITS_ENABLED); 96519ece546SJan Kara iput(inode); 96619ece546SJan Kara } 96719ece546SJan Kara } 96819ece546SJan Kara 969ccd979bdSMark Fasheh static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) 970ccd979bdSMark Fasheh { 971ccd979bdSMark Fasheh struct dentry *root; 972ccd979bdSMark Fasheh int status, sector_size; 973c0123adeSTiger Yang struct mount_options parsed_options; 974ccd979bdSMark Fasheh struct inode *inode = NULL; 975ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 976ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 97749fa8140SGoldwyn Rodrigues char nodestr[12]; 97873be192bSJoel Becker struct ocfs2_blockcheck_stats stats; 979ccd979bdSMark Fasheh 98032a42d39STao Ma trace_ocfs2_fill_super(sb, data, silent); 981ccd979bdSMark Fasheh 982c0123adeSTiger Yang if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { 983c271c5c2SSunil Mushran status = -EINVAL; 984f1e75d12SHeming Zhao via Ocfs2-devel goto out; 985c271c5c2SSunil Mushran } 986c271c5c2SSunil Mushran 987ccd979bdSMark Fasheh /* probe for superblock */ 98873be192bSJoel Becker status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); 989ccd979bdSMark Fasheh if (status < 0) { 990ccd979bdSMark Fasheh mlog(ML_ERROR, "superblock probe failed!\n"); 991f1e75d12SHeming Zhao via Ocfs2-devel goto out; 992ccd979bdSMark Fasheh } 993ccd979bdSMark Fasheh 99473be192bSJoel Becker status = ocfs2_initialize_super(sb, bh, sector_size, &stats); 995ccd979bdSMark Fasheh brelse(bh); 996ccd979bdSMark Fasheh bh = NULL; 997f1e75d12SHeming Zhao via Ocfs2-devel if (status < 0) 998f1e75d12SHeming Zhao via Ocfs2-devel goto out; 999f1e75d12SHeming Zhao via Ocfs2-devel 1000f1e75d12SHeming Zhao via Ocfs2-devel osb = OCFS2_SB(sb); 1001a68979b8STiger Yang 10025297aad8SJan Kara if (!ocfs2_check_set_options(sb, &parsed_options)) { 10035297aad8SJan Kara status = -EINVAL; 1004f1e75d12SHeming Zhao via Ocfs2-devel goto out_super; 10055297aad8SJan Kara } 1006c0123adeSTiger Yang osb->s_mount_opt = parsed_options.mount_opt; 1007c0123adeSTiger Yang osb->s_atime_quantum = parsed_options.atime_quantum; 1008c0123adeSTiger Yang osb->preferred_slot = parsed_options.slot; 1009d147b3d6SMark Fasheh osb->osb_commit_interval = parsed_options.commit_interval; 101073c8a800SMark Fasheh 101173c8a800SMark Fasheh ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); 1012d02f00ccSMark Fasheh osb->osb_resv_level = parsed_options.resv_level; 101383f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 101483f92318SMark Fasheh if (parsed_options.dir_resv_level == -1) 101583f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.resv_level; 101683f92318SMark Fasheh else 101783f92318SMark Fasheh osb->osb_dir_resv_level = parsed_options.dir_resv_level; 1018ccd979bdSMark Fasheh 1019b61817e1SJoel Becker status = ocfs2_verify_userspace_stack(osb, &parsed_options); 1020b61817e1SJoel Becker if (status) 1021f1e75d12SHeming Zhao via Ocfs2-devel goto out_super; 1022b61817e1SJoel Becker 1023ccd979bdSMark Fasheh sb->s_magic = OCFS2_SUPER_MAGIC; 1024ccd979bdSMark Fasheh 10251751e8a6SLinus Torvalds sb->s_flags = (sb->s_flags & ~(SB_POSIXACL | SB_NOSEC)) | 10261751e8a6SLinus Torvalds ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? SB_POSIXACL : 0); 1027a68979b8STiger Yang 10281751e8a6SLinus Torvalds /* Hard readonly mode only if: bdev_read_only, SB_RDONLY, 1029ccd979bdSMark Fasheh * heartbeat=none */ 1030ccd979bdSMark Fasheh if (bdev_read_only(sb->s_bdev)) { 1031bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 1032ccd979bdSMark Fasheh status = -EACCES; 1033ccd979bdSMark Fasheh mlog(ML_ERROR, "Readonly device detected but readonly " 1034ccd979bdSMark Fasheh "mount was not specified.\n"); 1035f1e75d12SHeming Zhao via Ocfs2-devel goto out_super; 1036ccd979bdSMark Fasheh } 1037ccd979bdSMark Fasheh 1038ccd979bdSMark Fasheh /* You should not be able to start a local heartbeat 1039ccd979bdSMark Fasheh * on a readonly device. */ 1040ccd979bdSMark Fasheh if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { 1041ccd979bdSMark Fasheh status = -EROFS; 1042ccd979bdSMark Fasheh mlog(ML_ERROR, "Local heartbeat specified on readonly " 1043ccd979bdSMark Fasheh "device.\n"); 1044f1e75d12SHeming Zhao via Ocfs2-devel goto out_super; 1045ccd979bdSMark Fasheh } 1046ccd979bdSMark Fasheh 1047ccd979bdSMark Fasheh status = ocfs2_check_journals_nolocks(osb); 1048ccd979bdSMark Fasheh if (status < 0) { 1049ccd979bdSMark Fasheh if (status == -EROFS) 1050ccd979bdSMark Fasheh mlog(ML_ERROR, "Recovery required on readonly " 1051ccd979bdSMark Fasheh "file system, but write access is " 1052ccd979bdSMark Fasheh "unavailable.\n"); 1053f1e75d12SHeming Zhao via Ocfs2-devel goto out_super; 1054ccd979bdSMark Fasheh } 1055ccd979bdSMark Fasheh 1056ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 1); 1057ccd979bdSMark Fasheh 1058619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: Readonly device (%s) detected. " 1059619c200dSSunil Mushran "Cluster services will not be used for this mount. " 1060619c200dSSunil Mushran "Recovery will be skipped.\n", osb->dev_str); 1061ccd979bdSMark Fasheh } 1062ccd979bdSMark Fasheh 1063ccd979bdSMark Fasheh if (!ocfs2_is_hard_readonly(osb)) { 1064bc98a42cSDavid Howells if (sb_rdonly(sb)) 1065ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 1066ccd979bdSMark Fasheh } 1067ccd979bdSMark Fasheh 1068c271c5c2SSunil Mushran status = ocfs2_verify_heartbeat(osb); 1069f1e75d12SHeming Zhao via Ocfs2-devel if (status < 0) 1070f1e75d12SHeming Zhao via Ocfs2-devel goto out_super; 1071c271c5c2SSunil Mushran 1072ccd979bdSMark Fasheh osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, 1073ccd979bdSMark Fasheh ocfs2_debugfs_root); 1074ccd979bdSMark Fasheh 10755e7a3ed9SGreg Kroah-Hartman debugfs_create_file("fs_state", S_IFREG|S_IRUSR, osb->osb_debug_root, 10765e7a3ed9SGreg Kroah-Hartman osb, &ocfs2_osb_debug_fops); 107750397507SSunil Mushran 1078e581595eSGreg Kroah-Hartman if (ocfs2_meta_ecc(osb)) 1079e581595eSGreg Kroah-Hartman ocfs2_blockcheck_stats_debugfs_install( &osb->osb_ecc_stats, 108073be192bSJoel Becker osb->osb_debug_root); 108173be192bSJoel Becker 1082ccd979bdSMark Fasheh status = ocfs2_mount_volume(sb); 1083ccd979bdSMark Fasheh if (status < 0) 1084f1e75d12SHeming Zhao via Ocfs2-devel goto out_debugfs; 1085ccd979bdSMark Fasheh 1086be0d93f0SAl Viro if (osb->root_inode) 1087be0d93f0SAl Viro inode = igrab(osb->root_inode); 1088be0d93f0SAl Viro 1089ccd979bdSMark Fasheh if (!inode) { 1090ccd979bdSMark Fasheh status = -EIO; 1091f1e75d12SHeming Zhao via Ocfs2-devel goto out_dismount; 1092ccd979bdSMark Fasheh } 1093ccd979bdSMark Fasheh 10945f483c4aSGang He osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL, 10955f483c4aSGang He &ocfs2_kset->kobj); 10965f483c4aSGang He if (!osb->osb_dev_kset) { 10975f483c4aSGang He status = -ENOMEM; 10985f483c4aSGang He mlog(ML_ERROR, "Unable to create device kset %s.\n", sb->s_id); 1099f1e75d12SHeming Zhao via Ocfs2-devel goto out_dismount; 11005f483c4aSGang He } 11015f483c4aSGang He 11025f483c4aSGang He /* Create filecheck sysfs related directories/files at 11035f483c4aSGang He * /sys/fs/ocfs2/<devname>/filecheck */ 11045f483c4aSGang He if (ocfs2_filecheck_create_sysfs(osb)) { 11055f483c4aSGang He status = -ENOMEM; 11065f483c4aSGang He mlog(ML_ERROR, "Unable to create filecheck sysfs directory at " 11075f483c4aSGang He "/sys/fs/ocfs2/%s/filecheck.\n", sb->s_id); 1108f1e75d12SHeming Zhao via Ocfs2-devel goto out_dismount; 11095f483c4aSGang He } 11105f483c4aSGang He 11117b0b1332SJoseph Qi root = d_make_root(inode); 11127b0b1332SJoseph Qi if (!root) { 11137b0b1332SJoseph Qi status = -ENOMEM; 1114f1e75d12SHeming Zhao via Ocfs2-devel goto out_dismount; 11157b0b1332SJoseph Qi } 11167b0b1332SJoseph Qi 11177b0b1332SJoseph Qi sb->s_root = root; 11187b0b1332SJoseph Qi 11197b0b1332SJoseph Qi ocfs2_complete_mount_recovery(osb); 11207b0b1332SJoseph Qi 1121c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1122c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1123c271c5c2SSunil Mushran else 112419fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1125c271c5c2SSunil Mushran 1126c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " 1127781ee3e2SSunil Mushran "with %s data mode.\n", 1128c271c5c2SSunil Mushran osb->dev_str, nodestr, osb->slot_num, 1129ccd979bdSMark Fasheh osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : 1130ccd979bdSMark Fasheh "ordered"); 1131ccd979bdSMark Fasheh 1132ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_MOUNTED); 1133ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1134ccd979bdSMark Fasheh 113519ece546SJan Kara /* Now we can initialize quotas because we can afford to wait 113619ece546SJan Kara * for cluster locks recovery now. That also means that truncation 113719ece546SJan Kara * log recovery can happen but that waits for proper quota setup */ 1138bc98a42cSDavid Howells if (!sb_rdonly(sb)) { 113919ece546SJan Kara status = ocfs2_enable_quotas(osb); 114019ece546SJan Kara if (status < 0) { 114119ece546SJan Kara /* We have to err-out specially here because 114219ece546SJan Kara * s_root is already set */ 114319ece546SJan Kara mlog_errno(status); 114419ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_DISABLED); 114519ece546SJan Kara wake_up(&osb->osb_mount_event); 114619ece546SJan Kara return status; 114719ece546SJan Kara } 114819ece546SJan Kara } 114919ece546SJan Kara 115019ece546SJan Kara ocfs2_complete_quota_recovery(osb); 115119ece546SJan Kara 115219ece546SJan Kara /* Now we wake up again for processes waiting for quotas */ 115319ece546SJan Kara atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); 115419ece546SJan Kara wake_up(&osb->osb_mount_event); 115519ece546SJan Kara 1156df152c24SSunil Mushran /* Start this when the mount is almost sure of being successful */ 11578b712cd5SJeff Mahoney ocfs2_orphan_scan_start(osb); 1158df152c24SSunil Mushran 1159ccd979bdSMark Fasheh return status; 1160ccd979bdSMark Fasheh 1161f1e75d12SHeming Zhao via Ocfs2-devel out_dismount: 1162ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISABLED); 1163ccd979bdSMark Fasheh wake_up(&osb->osb_mount_event); 1164ce2fcf15SLi Zetao ocfs2_free_replay_slots(osb); 1165ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 1); 1166f1e75d12SHeming Zhao via Ocfs2-devel goto out; 1167f1e75d12SHeming Zhao via Ocfs2-devel 1168f1e75d12SHeming Zhao via Ocfs2-devel out_debugfs: 1169f1e75d12SHeming Zhao via Ocfs2-devel debugfs_remove_recursive(osb->osb_debug_root); 1170f1e75d12SHeming Zhao via Ocfs2-devel out_super: 1171f1e75d12SHeming Zhao via Ocfs2-devel ocfs2_release_system_inodes(osb); 1172f1e75d12SHeming Zhao via Ocfs2-devel kfree(osb->recovery_map); 1173f1e75d12SHeming Zhao via Ocfs2-devel ocfs2_delete_osb(osb); 1174f1e75d12SHeming Zhao via Ocfs2-devel kfree(osb); 1175f1e75d12SHeming Zhao via Ocfs2-devel out: 1176f1e75d12SHeming Zhao via Ocfs2-devel mlog_errno(status); 1177ccd979bdSMark Fasheh 1178ccd979bdSMark Fasheh return status; 1179ccd979bdSMark Fasheh } 1180ccd979bdSMark Fasheh 1181152a0836SAl Viro static struct dentry *ocfs2_mount(struct file_system_type *fs_type, 1182ccd979bdSMark Fasheh int flags, 1183ccd979bdSMark Fasheh const char *dev_name, 1184152a0836SAl Viro void *data) 1185ccd979bdSMark Fasheh { 1186152a0836SAl Viro return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); 1187ccd979bdSMark Fasheh } 1188ccd979bdSMark Fasheh 1189ccd979bdSMark Fasheh static struct file_system_type ocfs2_fs_type = { 1190ccd979bdSMark Fasheh .owner = THIS_MODULE, 1191ccd979bdSMark Fasheh .name = "ocfs2", 1192152a0836SAl Viro .mount = ocfs2_mount, 11938ed6b237SGoldwyn Rodrigues .kill_sb = kill_block_super, 11941ba9da2fSMark Fasheh .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, 1195ccd979bdSMark Fasheh .next = NULL 1196ccd979bdSMark Fasheh }; 119791417705SEric W. Biederman MODULE_ALIAS_FS("ocfs2"); 1198ccd979bdSMark Fasheh 11995297aad8SJan Kara static int ocfs2_check_set_options(struct super_block *sb, 12005297aad8SJan Kara struct mount_options *options) 12015297aad8SJan Kara { 12025297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && 12035297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12045297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { 12055297aad8SJan Kara mlog(ML_ERROR, "User quotas were requested, but this " 12065297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12075297aad8SJan Kara return 0; 12085297aad8SJan Kara } 12095297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && 12105297aad8SJan Kara !OCFS2_HAS_RO_COMPAT_FEATURE(sb, 12115297aad8SJan Kara OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { 12125297aad8SJan Kara mlog(ML_ERROR, "Group quotas were requested, but this " 12135297aad8SJan Kara "filesystem does not have the feature enabled.\n"); 12145297aad8SJan Kara return 0; 12155297aad8SJan Kara } 12165297aad8SJan Kara if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && 12175297aad8SJan Kara !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { 12185297aad8SJan Kara mlog(ML_ERROR, "ACL support requested but extended attributes " 12195297aad8SJan Kara "feature is not enabled\n"); 12205297aad8SJan Kara return 0; 12215297aad8SJan Kara } 12225297aad8SJan Kara /* No ACL setting specified? Use XATTR feature... */ 12235297aad8SJan Kara if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | 12245297aad8SJan Kara OCFS2_MOUNT_NO_POSIX_ACL))) { 12255297aad8SJan Kara if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) 12265297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 12275297aad8SJan Kara else 12285297aad8SJan Kara options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 12295297aad8SJan Kara } 12305297aad8SJan Kara return 1; 12315297aad8SJan Kara } 12325297aad8SJan Kara 1233ccd979bdSMark Fasheh static int ocfs2_parse_options(struct super_block *sb, 1234ccd979bdSMark Fasheh char *options, 1235c0123adeSTiger Yang struct mount_options *mopt, 1236ccd979bdSMark Fasheh int is_remount) 1237ccd979bdSMark Fasheh { 123852c303c5SMark Fasheh int status, user_stack = 0; 1239ccd979bdSMark Fasheh char *p; 12402c442719SSunil Mushran u32 tmp; 12413eb5bdf0SNorton.Zhu int token, option; 12423eb5bdf0SNorton.Zhu substring_t args[MAX_OPT_ARGS]; 1243ccd979bdSMark Fasheh 124432a42d39STao Ma trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); 1245ccd979bdSMark Fasheh 1246d147b3d6SMark Fasheh mopt->commit_interval = 0; 12474b37fcb7SSunil Mushran mopt->mount_opt = OCFS2_MOUNT_NOINTR; 1248c0123adeSTiger Yang mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 1249c0123adeSTiger Yang mopt->slot = OCFS2_INVALID_SLOT; 125073c8a800SMark Fasheh mopt->localalloc_opt = -1; 1251b61817e1SJoel Becker mopt->cluster_stack[0] = '\0'; 1252d02f00ccSMark Fasheh mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; 125383f92318SMark Fasheh mopt->dir_resv_level = -1; 1254ccd979bdSMark Fasheh 1255ccd979bdSMark Fasheh if (!options) { 1256ccd979bdSMark Fasheh status = 1; 1257ccd979bdSMark Fasheh goto bail; 1258ccd979bdSMark Fasheh } 1259ccd979bdSMark Fasheh 1260ccd979bdSMark Fasheh while ((p = strsep(&options, ",")) != NULL) { 1261ccd979bdSMark Fasheh if (!*p) 1262ccd979bdSMark Fasheh continue; 1263ccd979bdSMark Fasheh 1264ccd979bdSMark Fasheh token = match_token(p, tokens, args); 1265ccd979bdSMark Fasheh switch (token) { 1266ccd979bdSMark Fasheh case Opt_hb_local: 1267c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; 1268ccd979bdSMark Fasheh break; 1269ccd979bdSMark Fasheh case Opt_hb_none: 12702c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; 12712c442719SSunil Mushran break; 12722c442719SSunil Mushran case Opt_hb_global: 12732c442719SSunil Mushran mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; 1274ccd979bdSMark Fasheh break; 1275ccd979bdSMark Fasheh case Opt_barrier: 1276ccd979bdSMark Fasheh if (match_int(&args[0], &option)) { 1277ccd979bdSMark Fasheh status = 0; 1278ccd979bdSMark Fasheh goto bail; 1279ccd979bdSMark Fasheh } 1280ccd979bdSMark Fasheh if (option) 1281c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_BARRIER; 1282ccd979bdSMark Fasheh else 1283c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; 1284ccd979bdSMark Fasheh break; 1285ccd979bdSMark Fasheh case Opt_intr: 1286c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; 1287ccd979bdSMark Fasheh break; 1288ccd979bdSMark Fasheh case Opt_nointr: 1289c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOINTR; 1290ccd979bdSMark Fasheh break; 1291ccd979bdSMark Fasheh case Opt_err_panic: 12927d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 12937d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 1294c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 1295ccd979bdSMark Fasheh break; 1296ccd979bdSMark Fasheh case Opt_err_ro: 12977d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT; 1298c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 12997d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_ROFS; 13007d0fb914SGoldwyn Rodrigues break; 13017d0fb914SGoldwyn Rodrigues case Opt_err_cont: 13027d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS; 13037d0fb914SGoldwyn Rodrigues mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; 13047d0fb914SGoldwyn Rodrigues mopt->mount_opt |= OCFS2_MOUNT_ERRORS_CONT; 1305ccd979bdSMark Fasheh break; 1306ccd979bdSMark Fasheh case Opt_data_ordered: 1307c0123adeSTiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; 1308ccd979bdSMark Fasheh break; 1309ccd979bdSMark Fasheh case Opt_data_writeback: 1310c0123adeSTiger Yang mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; 1311ccd979bdSMark Fasheh break; 1312cf1d6c76STiger Yang case Opt_user_xattr: 1313cf1d6c76STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; 1314cf1d6c76STiger Yang break; 1315cf1d6c76STiger Yang case Opt_nouser_xattr: 1316cf1d6c76STiger Yang mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; 1317cf1d6c76STiger Yang break; 13187f1a37e3STiger Yang case Opt_atime_quantum: 13197f1a37e3STiger Yang if (match_int(&args[0], &option)) { 13207f1a37e3STiger Yang status = 0; 13217f1a37e3STiger Yang goto bail; 13227f1a37e3STiger Yang } 13237f1a37e3STiger Yang if (option >= 0) 1324c0123adeSTiger Yang mopt->atime_quantum = option; 13257f1a37e3STiger Yang break; 1326baf4661aSSunil Mushran case Opt_slot: 1327baf4661aSSunil Mushran if (match_int(&args[0], &option)) { 1328baf4661aSSunil Mushran status = 0; 1329baf4661aSSunil Mushran goto bail; 1330baf4661aSSunil Mushran } 1331baf4661aSSunil Mushran if (option) 133238d51b2dSJunxiao Bi mopt->slot = (u16)option; 1333baf4661aSSunil Mushran break; 1334d147b3d6SMark Fasheh case Opt_commit: 1335d147b3d6SMark Fasheh if (match_int(&args[0], &option)) { 1336d147b3d6SMark Fasheh status = 0; 1337d147b3d6SMark Fasheh goto bail; 1338d147b3d6SMark Fasheh } 1339d147b3d6SMark Fasheh if (option < 0) 1340d147b3d6SMark Fasheh return 0; 1341d147b3d6SMark Fasheh if (option == 0) 13422b4e30fbSJoel Becker option = JBD2_DEFAULT_MAX_COMMIT_AGE; 1343d147b3d6SMark Fasheh mopt->commit_interval = HZ * option; 1344d147b3d6SMark Fasheh break; 13452fbe8d1eSSunil Mushran case Opt_localalloc: 13462fbe8d1eSSunil Mushran if (match_int(&args[0], &option)) { 13472fbe8d1eSSunil Mushran status = 0; 13482fbe8d1eSSunil Mushran goto bail; 13492fbe8d1eSSunil Mushran } 135073c8a800SMark Fasheh if (option >= 0) 13512fbe8d1eSSunil Mushran mopt->localalloc_opt = option; 13522fbe8d1eSSunil Mushran break; 135353fc622bSMark Fasheh case Opt_localflocks: 135453fc622bSMark Fasheh /* 135553fc622bSMark Fasheh * Changing this during remount could race 135653fc622bSMark Fasheh * flock() requests, or "unbalance" existing 135753fc622bSMark Fasheh * ones (e.g., a lock is taken in one mode but 135853fc622bSMark Fasheh * dropped in the other). If users care enough 135953fc622bSMark Fasheh * to flip locking modes during remount, we 136053fc622bSMark Fasheh * could add a "local" flag to individual 136153fc622bSMark Fasheh * flock structures for proper tracking of 136253fc622bSMark Fasheh * state. 136353fc622bSMark Fasheh */ 136453fc622bSMark Fasheh if (!is_remount) 136553fc622bSMark Fasheh mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; 136653fc622bSMark Fasheh break; 1367b61817e1SJoel Becker case Opt_stack: 1368b61817e1SJoel Becker /* Check both that the option we were passed 1369b61817e1SJoel Becker * is of the right length and that it is a proper 1370b61817e1SJoel Becker * string of the right length. 1371b61817e1SJoel Becker */ 1372b61817e1SJoel Becker if (((args[0].to - args[0].from) != 1373b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) || 1374b61817e1SJoel Becker (strnlen(args[0].from, 1375b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN) != 1376b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN)) { 1377b61817e1SJoel Becker mlog(ML_ERROR, 1378b61817e1SJoel Becker "Invalid cluster_stack option\n"); 1379b61817e1SJoel Becker status = 0; 1380b61817e1SJoel Becker goto bail; 1381b61817e1SJoel Becker } 1382b61817e1SJoel Becker memcpy(mopt->cluster_stack, args[0].from, 1383b61817e1SJoel Becker OCFS2_STACK_LABEL_LEN); 1384b61817e1SJoel Becker mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; 138552c303c5SMark Fasheh /* 138652c303c5SMark Fasheh * Open code the memcmp here as we don't have 138752c303c5SMark Fasheh * an osb to pass to 138852c303c5SMark Fasheh * ocfs2_userspace_stack(). 138952c303c5SMark Fasheh */ 139052c303c5SMark Fasheh if (memcmp(mopt->cluster_stack, 139152c303c5SMark Fasheh OCFS2_CLASSIC_CLUSTER_STACK, 139252c303c5SMark Fasheh OCFS2_STACK_LABEL_LEN)) 139352c303c5SMark Fasheh user_stack = 1; 1394b61817e1SJoel Becker break; 139512462f1dSJoel Becker case Opt_inode64: 139612462f1dSJoel Becker mopt->mount_opt |= OCFS2_MOUNT_INODE64; 139712462f1dSJoel Becker break; 139819ece546SJan Kara case Opt_usrquota: 139919ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; 140019ece546SJan Kara break; 140119ece546SJan Kara case Opt_grpquota: 140219ece546SJan Kara mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; 140319ece546SJan Kara break; 14047bdb0d18STristan Ye case Opt_coherency_buffered: 14057bdb0d18STristan Ye mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; 14067bdb0d18STristan Ye break; 14077bdb0d18STristan Ye case Opt_coherency_full: 14087bdb0d18STristan Ye mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; 14097bdb0d18STristan Ye break; 1410a68979b8STiger Yang case Opt_acl: 1411a68979b8STiger Yang mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; 14125297aad8SJan Kara mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; 1413a68979b8STiger Yang break; 1414a68979b8STiger Yang case Opt_noacl: 14155297aad8SJan Kara mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; 1416a68979b8STiger Yang mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; 1417a68979b8STiger Yang break; 1418d02f00ccSMark Fasheh case Opt_resv_level: 1419d02f00ccSMark Fasheh if (is_remount) 1420d02f00ccSMark Fasheh break; 1421d02f00ccSMark Fasheh if (match_int(&args[0], &option)) { 1422d02f00ccSMark Fasheh status = 0; 1423d02f00ccSMark Fasheh goto bail; 1424d02f00ccSMark Fasheh } 1425d02f00ccSMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 1426d02f00ccSMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 1427d02f00ccSMark Fasheh mopt->resv_level = option; 1428d02f00ccSMark Fasheh break; 142983f92318SMark Fasheh case Opt_dir_resv_level: 143083f92318SMark Fasheh if (is_remount) 143183f92318SMark Fasheh break; 143283f92318SMark Fasheh if (match_int(&args[0], &option)) { 143383f92318SMark Fasheh status = 0; 143483f92318SMark Fasheh goto bail; 143583f92318SMark Fasheh } 143683f92318SMark Fasheh if (option >= OCFS2_MIN_RESV_LEVEL && 143783f92318SMark Fasheh option < OCFS2_MAX_RESV_LEVEL) 143883f92318SMark Fasheh mopt->dir_resv_level = option; 143983f92318SMark Fasheh break; 14401dfeb768Salex chen case Opt_journal_async_commit: 14411dfeb768Salex chen mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT; 14421dfeb768Salex chen break; 1443ccd979bdSMark Fasheh default: 1444ccd979bdSMark Fasheh mlog(ML_ERROR, 1445ccd979bdSMark Fasheh "Unrecognized mount option \"%s\" " 1446ccd979bdSMark Fasheh "or missing value\n", p); 1447ccd979bdSMark Fasheh status = 0; 1448ccd979bdSMark Fasheh goto bail; 1449ccd979bdSMark Fasheh } 1450ccd979bdSMark Fasheh } 1451ccd979bdSMark Fasheh 145252c303c5SMark Fasheh if (user_stack == 0) { 14532c442719SSunil Mushran /* Ensure only one heartbeat mode */ 145452c303c5SMark Fasheh tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | 145552c303c5SMark Fasheh OCFS2_MOUNT_HB_GLOBAL | 14562c442719SSunil Mushran OCFS2_MOUNT_HB_NONE); 14572c442719SSunil Mushran if (hweight32(tmp) != 1) { 14582c442719SSunil Mushran mlog(ML_ERROR, "Invalid heartbeat mount options\n"); 14592c442719SSunil Mushran status = 0; 14602c442719SSunil Mushran goto bail; 14612c442719SSunil Mushran } 146252c303c5SMark Fasheh } 14632c442719SSunil Mushran 1464ccd979bdSMark Fasheh status = 1; 1465ccd979bdSMark Fasheh 1466ccd979bdSMark Fasheh bail: 1467ccd979bdSMark Fasheh return status; 1468ccd979bdSMark Fasheh } 1469ccd979bdSMark Fasheh 147034c80b1dSAl Viro static int ocfs2_show_options(struct seq_file *s, struct dentry *root) 1471d550071cSSunil Mushran { 147234c80b1dSAl Viro struct ocfs2_super *osb = OCFS2_SB(root->d_sb); 1473d550071cSSunil Mushran unsigned long opts = osb->s_mount_opt; 1474ebcee4b5SMark Fasheh unsigned int local_alloc_megs; 1475d550071cSSunil Mushran 14762c442719SSunil Mushran if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { 14772c442719SSunil Mushran seq_printf(s, ",_netdev"); 1478d550071cSSunil Mushran if (opts & OCFS2_MOUNT_HB_LOCAL) 14792c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_LOCAL); 1480d550071cSSunil Mushran else 14812c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_GLOBAL); 14822c442719SSunil Mushran } else 14832c442719SSunil Mushran seq_printf(s, ",%s", OCFS2_HB_NONE); 1484d550071cSSunil Mushran 1485d550071cSSunil Mushran if (opts & OCFS2_MOUNT_NOINTR) 1486d550071cSSunil Mushran seq_printf(s, ",nointr"); 1487d550071cSSunil Mushran 1488d550071cSSunil Mushran if (opts & OCFS2_MOUNT_DATA_WRITEBACK) 1489d550071cSSunil Mushran seq_printf(s, ",data=writeback"); 1490d550071cSSunil Mushran else 1491d550071cSSunil Mushran seq_printf(s, ",data=ordered"); 1492d550071cSSunil Mushran 1493d550071cSSunil Mushran if (opts & OCFS2_MOUNT_BARRIER) 1494d550071cSSunil Mushran seq_printf(s, ",barrier=1"); 1495d550071cSSunil Mushran 1496d550071cSSunil Mushran if (opts & OCFS2_MOUNT_ERRORS_PANIC) 1497d550071cSSunil Mushran seq_printf(s, ",errors=panic"); 14987d0fb914SGoldwyn Rodrigues else if (opts & OCFS2_MOUNT_ERRORS_CONT) 14997d0fb914SGoldwyn Rodrigues seq_printf(s, ",errors=continue"); 1500d550071cSSunil Mushran else 1501d550071cSSunil Mushran seq_printf(s, ",errors=remount-ro"); 1502d550071cSSunil Mushran 1503d550071cSSunil Mushran if (osb->preferred_slot != OCFS2_INVALID_SLOT) 1504d550071cSSunil Mushran seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); 1505d550071cSSunil Mushran 1506d550071cSSunil Mushran seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); 1507d550071cSSunil Mushran 1508d147b3d6SMark Fasheh if (osb->osb_commit_interval) 1509d147b3d6SMark Fasheh seq_printf(s, ",commit=%u", 1510d147b3d6SMark Fasheh (unsigned) (osb->osb_commit_interval / HZ)); 1511d147b3d6SMark Fasheh 1512ebcee4b5SMark Fasheh local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); 15136b82021bSMark Fasheh if (local_alloc_megs != ocfs2_la_default_mb(osb)) 1514ebcee4b5SMark Fasheh seq_printf(s, ",localalloc=%d", local_alloc_megs); 15152fbe8d1eSSunil Mushran 151653fc622bSMark Fasheh if (opts & OCFS2_MOUNT_LOCALFLOCKS) 151753fc622bSMark Fasheh seq_printf(s, ",localflocks,"); 151853fc622bSMark Fasheh 1519b61817e1SJoel Becker if (osb->osb_cluster_stack[0]) 1520a068acf2SKees Cook seq_show_option_n(s, "cluster_stack", osb->osb_cluster_stack, 1521a068acf2SKees Cook OCFS2_STACK_LABEL_LEN); 152219ece546SJan Kara if (opts & OCFS2_MOUNT_USRQUOTA) 152319ece546SJan Kara seq_printf(s, ",usrquota"); 152419ece546SJan Kara if (opts & OCFS2_MOUNT_GRPQUOTA) 152519ece546SJan Kara seq_printf(s, ",grpquota"); 1526b61817e1SJoel Becker 15277bdb0d18STristan Ye if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) 15287bdb0d18STristan Ye seq_printf(s, ",coherency=buffered"); 15297bdb0d18STristan Ye else 15307bdb0d18STristan Ye seq_printf(s, ",coherency=full"); 15317bdb0d18STristan Ye 1532b0f73cfcSSunil Mushran if (opts & OCFS2_MOUNT_NOUSERXATTR) 1533b0f73cfcSSunil Mushran seq_printf(s, ",nouser_xattr"); 1534b0f73cfcSSunil Mushran else 1535b0f73cfcSSunil Mushran seq_printf(s, ",user_xattr"); 1536b0f73cfcSSunil Mushran 153712462f1dSJoel Becker if (opts & OCFS2_MOUNT_INODE64) 153812462f1dSJoel Becker seq_printf(s, ",inode64"); 153912462f1dSJoel Becker 1540a68979b8STiger Yang if (opts & OCFS2_MOUNT_POSIX_ACL) 1541a68979b8STiger Yang seq_printf(s, ",acl"); 1542a68979b8STiger Yang else 1543a68979b8STiger Yang seq_printf(s, ",noacl"); 1544a68979b8STiger Yang 1545d02f00ccSMark Fasheh if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) 1546d02f00ccSMark Fasheh seq_printf(s, ",resv_level=%d", osb->osb_resv_level); 1547d02f00ccSMark Fasheh 154883f92318SMark Fasheh if (osb->osb_dir_resv_level != osb->osb_resv_level) 154983f92318SMark Fasheh seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); 155083f92318SMark Fasheh 15511dfeb768Salex chen if (opts & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 15521dfeb768Salex chen seq_printf(s, ",journal_async_commit"); 15531dfeb768Salex chen 1554d550071cSSunil Mushran return 0; 1555d550071cSSunil Mushran } 1556d550071cSSunil Mushran 1557ccd979bdSMark Fasheh static int __init ocfs2_init(void) 1558ccd979bdSMark Fasheh { 1559c18ceab0SWengang Wang int status; 1560a11f7e63SMark Fasheh 1561ccd979bdSMark Fasheh status = init_ocfs2_uptodate_cache(); 1562342827d7SAl Viro if (status < 0) 1563342827d7SAl Viro goto out1; 1564ccd979bdSMark Fasheh 1565ccd979bdSMark Fasheh status = ocfs2_initialize_mem_caches(); 1566342827d7SAl Viro if (status < 0) 1567342827d7SAl Viro goto out2; 1568ccd979bdSMark Fasheh 1569ccd979bdSMark Fasheh ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); 1570ccd979bdSMark Fasheh 157163e0c48aSJoel Becker ocfs2_set_locking_protocol(); 157263e0c48aSJoel Becker 15739e33d69fSJan Kara status = register_quota_format(&ocfs2_quota_format); 1574342827d7SAl Viro if (status < 0) 157535ddf78eSjiangyiwen goto out3; 1576342827d7SAl Viro status = register_filesystem(&ocfs2_fs_type); 1577342827d7SAl Viro if (!status) 1578342827d7SAl Viro return 0; 1579ccd979bdSMark Fasheh 1580342827d7SAl Viro unregister_quota_format(&ocfs2_quota_format); 1581342827d7SAl Viro out3: 158235ddf78eSjiangyiwen debugfs_remove(ocfs2_debugfs_root); 1583342827d7SAl Viro ocfs2_free_mem_caches(); 1584342827d7SAl Viro out2: 1585342827d7SAl Viro exit_ocfs2_uptodate_cache(); 1586342827d7SAl Viro out1: 1587342827d7SAl Viro mlog_errno(status); 1588342827d7SAl Viro return status; 1589ccd979bdSMark Fasheh } 1590ccd979bdSMark Fasheh 1591ccd979bdSMark Fasheh static void __exit ocfs2_exit(void) 1592ccd979bdSMark Fasheh { 15939e33d69fSJan Kara unregister_quota_format(&ocfs2_quota_format); 15949e33d69fSJan Kara 1595ccd979bdSMark Fasheh debugfs_remove(ocfs2_debugfs_root); 1596ccd979bdSMark Fasheh 1597ccd979bdSMark Fasheh ocfs2_free_mem_caches(); 1598ccd979bdSMark Fasheh 1599ccd979bdSMark Fasheh unregister_filesystem(&ocfs2_fs_type); 1600ccd979bdSMark Fasheh 1601ccd979bdSMark Fasheh exit_ocfs2_uptodate_cache(); 1602ccd979bdSMark Fasheh } 1603ccd979bdSMark Fasheh 1604ccd979bdSMark Fasheh static void ocfs2_put_super(struct super_block *sb) 1605ccd979bdSMark Fasheh { 160632a42d39STao Ma trace_ocfs2_put_super(sb); 1607ccd979bdSMark Fasheh 1608ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1609ccd979bdSMark Fasheh ocfs2_dismount_volume(sb, 0); 1610ccd979bdSMark Fasheh } 1611ccd979bdSMark Fasheh 1612726c3342SDavid Howells static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) 1613ccd979bdSMark Fasheh { 1614ccd979bdSMark Fasheh struct ocfs2_super *osb; 1615ccd979bdSMark Fasheh u32 numbits, freebits; 1616ccd979bdSMark Fasheh int status; 1617ccd979bdSMark Fasheh struct ocfs2_dinode *bm_lock; 1618ccd979bdSMark Fasheh struct buffer_head *bh = NULL; 1619ccd979bdSMark Fasheh struct inode *inode = NULL; 1620ccd979bdSMark Fasheh 162132a42d39STao Ma trace_ocfs2_statfs(dentry->d_sb, buf); 1622ccd979bdSMark Fasheh 1623726c3342SDavid Howells osb = OCFS2_SB(dentry->d_sb); 1624ccd979bdSMark Fasheh 1625ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, 1626ccd979bdSMark Fasheh GLOBAL_BITMAP_SYSTEM_INODE, 1627ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 1628ccd979bdSMark Fasheh if (!inode) { 1629ccd979bdSMark Fasheh mlog(ML_ERROR, "failed to get bitmap inode\n"); 1630ccd979bdSMark Fasheh status = -EIO; 1631ccd979bdSMark Fasheh goto bail; 1632ccd979bdSMark Fasheh } 1633ccd979bdSMark Fasheh 1634e63aecb6SMark Fasheh status = ocfs2_inode_lock(inode, &bh, 0); 1635ccd979bdSMark Fasheh if (status < 0) { 1636ccd979bdSMark Fasheh mlog_errno(status); 1637ccd979bdSMark Fasheh goto bail; 1638ccd979bdSMark Fasheh } 1639ccd979bdSMark Fasheh 1640ccd979bdSMark Fasheh bm_lock = (struct ocfs2_dinode *) bh->b_data; 1641ccd979bdSMark Fasheh 1642ccd979bdSMark Fasheh numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); 1643ccd979bdSMark Fasheh freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); 1644ccd979bdSMark Fasheh 1645ccd979bdSMark Fasheh buf->f_type = OCFS2_SUPER_MAGIC; 1646726c3342SDavid Howells buf->f_bsize = dentry->d_sb->s_blocksize; 1647ccd979bdSMark Fasheh buf->f_namelen = OCFS2_MAX_FILENAME_LEN; 1648ccd979bdSMark Fasheh buf->f_blocks = ((sector_t) numbits) * 1649ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1650ccd979bdSMark Fasheh buf->f_bfree = ((sector_t) freebits) * 1651ccd979bdSMark Fasheh (osb->s_clustersize >> osb->sb->s_blocksize_bits); 1652ccd979bdSMark Fasheh buf->f_bavail = buf->f_bfree; 1653ccd979bdSMark Fasheh buf->f_files = numbits; 1654ccd979bdSMark Fasheh buf->f_ffree = freebits; 1655837711f8SColy Li buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) 1656837711f8SColy Li & 0xFFFFFFFFUL; 1657837711f8SColy Li buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, 1658837711f8SColy Li OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; 1659ccd979bdSMark Fasheh 1660ccd979bdSMark Fasheh brelse(bh); 1661ccd979bdSMark Fasheh 1662e63aecb6SMark Fasheh ocfs2_inode_unlock(inode, 0); 1663ccd979bdSMark Fasheh status = 0; 1664ccd979bdSMark Fasheh bail: 1665ccd979bdSMark Fasheh iput(inode); 1666ccd979bdSMark Fasheh 1667c1e8d35eSTao Ma if (status) 1668c1e8d35eSTao Ma mlog_errno(status); 1669ccd979bdSMark Fasheh 1670ccd979bdSMark Fasheh return status; 1671ccd979bdSMark Fasheh } 1672ccd979bdSMark Fasheh 167351cc5068SAlexey Dobriyan static void ocfs2_inode_init_once(void *data) 1674ccd979bdSMark Fasheh { 1675ccd979bdSMark Fasheh struct ocfs2_inode_info *oi = data; 1676ccd979bdSMark Fasheh 1677ccd979bdSMark Fasheh oi->ip_flags = 0; 1678ccd979bdSMark Fasheh oi->ip_open_count = 0; 1679ccd979bdSMark Fasheh spin_lock_init(&oi->ip_lock); 168083418978SMark Fasheh ocfs2_extent_map_init(&oi->vfs_inode); 1681ccd979bdSMark Fasheh INIT_LIST_HEAD(&oi->ip_io_markers); 16824506cfb6SRyan Ding INIT_LIST_HEAD(&oi->ip_unwritten_list); 1683ccd979bdSMark Fasheh oi->ip_dir_start_lookup = 0; 1684ccd979bdSMark Fasheh init_rwsem(&oi->ip_alloc_sem); 1685cf1d6c76STiger Yang init_rwsem(&oi->ip_xattr_sem); 1686251b6eccSMark Fasheh mutex_init(&oi->ip_io_mutex); 1687ccd979bdSMark Fasheh 1688ccd979bdSMark Fasheh oi->ip_blkno = 0ULL; 1689ccd979bdSMark Fasheh oi->ip_clusters = 0; 1690f5785283SWengang Wang oi->ip_next_orphan = NULL; 1691ccd979bdSMark Fasheh 16924fe370afSMark Fasheh ocfs2_resv_init_once(&oi->ip_la_data_resv); 16934fe370afSMark Fasheh 1694ccd979bdSMark Fasheh ocfs2_lock_res_init_once(&oi->ip_rw_lockres); 1695e63aecb6SMark Fasheh ocfs2_lock_res_init_once(&oi->ip_inode_lockres); 169650008630STiger Yang ocfs2_lock_res_init_once(&oi->ip_open_lockres); 1697ccd979bdSMark Fasheh 16988cb471e8SJoel Becker ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), 16996e5a3d75SJoel Becker &ocfs2_inode_caching_ops); 1700ccd979bdSMark Fasheh 1701ccd979bdSMark Fasheh inode_init_once(&oi->vfs_inode); 1702ccd979bdSMark Fasheh } 1703ccd979bdSMark Fasheh 1704ccd979bdSMark Fasheh static int ocfs2_initialize_mem_caches(void) 1705ccd979bdSMark Fasheh { 1706ccd979bdSMark Fasheh ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", 1707ccd979bdSMark Fasheh sizeof(struct ocfs2_inode_info), 1708fffb60f9SPaul Jackson 0, 1709fffb60f9SPaul Jackson (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17105d097056SVladimir Davydov SLAB_MEM_SPREAD|SLAB_ACCOUNT), 171120c2df83SPaul Mundt ocfs2_inode_init_once); 17129e33d69fSJan Kara ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", 17139e33d69fSJan Kara sizeof(struct ocfs2_dquot), 17149e33d69fSJan Kara 0, 17159e33d69fSJan Kara (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| 17169e33d69fSJan Kara SLAB_MEM_SPREAD), 17179e33d69fSJan Kara NULL); 17189e33d69fSJan Kara ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", 17199e33d69fSJan Kara sizeof(struct ocfs2_quota_chunk), 17209e33d69fSJan Kara 0, 17219e33d69fSJan Kara (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), 17229e33d69fSJan Kara NULL); 17239e33d69fSJan Kara if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || 17249e33d69fSJan Kara !ocfs2_qf_chunk_cachep) { 17259e33d69fSJan Kara kmem_cache_destroy(ocfs2_inode_cachep); 17269e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17279e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 1728ccd979bdSMark Fasheh return -ENOMEM; 17299e33d69fSJan Kara } 1730ccd979bdSMark Fasheh 1731ccd979bdSMark Fasheh return 0; 1732ccd979bdSMark Fasheh } 1733ccd979bdSMark Fasheh 1734ccd979bdSMark Fasheh static void ocfs2_free_mem_caches(void) 1735ccd979bdSMark Fasheh { 17368c0a8537SKirill A. Shutemov /* 17378c0a8537SKirill A. Shutemov * Make sure all delayed rcu free inodes are flushed before we 17388c0a8537SKirill A. Shutemov * destroy cache. 17398c0a8537SKirill A. Shutemov */ 17408c0a8537SKirill A. Shutemov rcu_barrier(); 1741ccd979bdSMark Fasheh kmem_cache_destroy(ocfs2_inode_cachep); 1742ccd979bdSMark Fasheh ocfs2_inode_cachep = NULL; 17439e33d69fSJan Kara 17449e33d69fSJan Kara kmem_cache_destroy(ocfs2_dquot_cachep); 17459e33d69fSJan Kara ocfs2_dquot_cachep = NULL; 17469e33d69fSJan Kara 17479e33d69fSJan Kara kmem_cache_destroy(ocfs2_qf_chunk_cachep); 17489e33d69fSJan Kara ocfs2_qf_chunk_cachep = NULL; 1749ccd979bdSMark Fasheh } 1750ccd979bdSMark Fasheh 1751ccd979bdSMark Fasheh static int ocfs2_get_sector(struct super_block *sb, 1752ccd979bdSMark Fasheh struct buffer_head **bh, 1753ccd979bdSMark Fasheh int block, 1754ccd979bdSMark Fasheh int sect_size) 1755ccd979bdSMark Fasheh { 1756ccd979bdSMark Fasheh if (!sb_set_blocksize(sb, sect_size)) { 1757ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to set blocksize\n"); 1758ccd979bdSMark Fasheh return -EIO; 1759ccd979bdSMark Fasheh } 1760ccd979bdSMark Fasheh 1761ccd979bdSMark Fasheh *bh = sb_getblk(sb, block); 1762ccd979bdSMark Fasheh if (!*bh) { 17637391a294SRui Xiang mlog_errno(-ENOMEM); 17647391a294SRui Xiang return -ENOMEM; 1765ccd979bdSMark Fasheh } 1766ccd979bdSMark Fasheh lock_buffer(*bh); 1767ccd979bdSMark Fasheh if (!buffer_dirty(*bh)) 1768ccd979bdSMark Fasheh clear_buffer_uptodate(*bh); 1769ccd979bdSMark Fasheh unlock_buffer(*bh); 177054d9171dSZhang Yi if (bh_read(*bh, 0) < 0) { 177128d57d43Swengang wang mlog_errno(-EIO); 177228d57d43Swengang wang brelse(*bh); 177328d57d43Swengang wang *bh = NULL; 177428d57d43Swengang wang return -EIO; 177528d57d43Swengang wang } 177628d57d43Swengang wang 1777ccd979bdSMark Fasheh return 0; 1778ccd979bdSMark Fasheh } 1779ccd979bdSMark Fasheh 1780ccd979bdSMark Fasheh static int ocfs2_mount_volume(struct super_block *sb) 1781ccd979bdSMark Fasheh { 1782ccd979bdSMark Fasheh int status = 0; 1783ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 1784ccd979bdSMark Fasheh 1785ccd979bdSMark Fasheh if (ocfs2_is_hard_readonly(osb)) 17860737e01dSHeming Zhao via Ocfs2-devel goto out; 1787ccd979bdSMark Fasheh 17885500ab4eSGang He mutex_init(&osb->obs_trim_fs_mutex); 17895500ab4eSGang He 1790ccd979bdSMark Fasheh status = ocfs2_dlm_init(osb); 1791ccd979bdSMark Fasheh if (status < 0) { 1792ccd979bdSMark Fasheh mlog_errno(status); 1793a52370b3SGang He if (status == -EBADR && ocfs2_userspace_stack(osb)) 1794a52370b3SGang He mlog(ML_ERROR, "couldn't mount because cluster name on" 1795a52370b3SGang He " disk does not match the running cluster name.\n"); 17960737e01dSHeming Zhao via Ocfs2-devel goto out; 1797ccd979bdSMark Fasheh } 1798ccd979bdSMark Fasheh 1799ccd979bdSMark Fasheh status = ocfs2_super_lock(osb, 1); 1800ccd979bdSMark Fasheh if (status < 0) { 1801ccd979bdSMark Fasheh mlog_errno(status); 18020737e01dSHeming Zhao via Ocfs2-devel goto out_dlm; 1803ccd979bdSMark Fasheh } 1804ccd979bdSMark Fasheh 1805ccd979bdSMark Fasheh /* This will load up the node map and add ourselves to it. */ 1806ccd979bdSMark Fasheh status = ocfs2_find_slot(osb); 1807ccd979bdSMark Fasheh if (status < 0) { 1808ccd979bdSMark Fasheh mlog_errno(status); 18090737e01dSHeming Zhao via Ocfs2-devel goto out_super_lock; 1810ccd979bdSMark Fasheh } 1811ccd979bdSMark Fasheh 1812ccd979bdSMark Fasheh /* load all node-local system inodes */ 1813ccd979bdSMark Fasheh status = ocfs2_init_local_system_inodes(osb); 1814ccd979bdSMark Fasheh if (status < 0) { 1815ccd979bdSMark Fasheh mlog_errno(status); 18160737e01dSHeming Zhao via Ocfs2-devel goto out_super_lock; 1817ccd979bdSMark Fasheh } 1818ccd979bdSMark Fasheh 1819ccd979bdSMark Fasheh status = ocfs2_check_volume(osb); 1820ccd979bdSMark Fasheh if (status < 0) { 1821ccd979bdSMark Fasheh mlog_errno(status); 18220737e01dSHeming Zhao via Ocfs2-devel goto out_system_inodes; 1823ccd979bdSMark Fasheh } 1824ccd979bdSMark Fasheh 1825ccd979bdSMark Fasheh status = ocfs2_truncate_log_init(osb); 18260737e01dSHeming Zhao via Ocfs2-devel if (status < 0) { 1827ccd979bdSMark Fasheh mlog_errno(status); 1828ce2fcf15SLi Zetao goto out_check_volume; 18290737e01dSHeming Zhao via Ocfs2-devel } 1830c271c5c2SSunil Mushran 1831ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 18320737e01dSHeming Zhao via Ocfs2-devel return 0; 1833ccd979bdSMark Fasheh 1834ce2fcf15SLi Zetao out_check_volume: 1835ce2fcf15SLi Zetao ocfs2_free_replay_slots(osb); 18360737e01dSHeming Zhao via Ocfs2-devel out_system_inodes: 18370737e01dSHeming Zhao via Ocfs2-devel if (osb->local_alloc_state == OCFS2_LA_ENABLED) 18380737e01dSHeming Zhao via Ocfs2-devel ocfs2_shutdown_local_alloc(osb); 18390737e01dSHeming Zhao via Ocfs2-devel ocfs2_release_system_inodes(osb); 18400737e01dSHeming Zhao via Ocfs2-devel /* before journal shutdown, we should release slot_info */ 18410737e01dSHeming Zhao via Ocfs2-devel ocfs2_free_slot_info(osb); 18420737e01dSHeming Zhao via Ocfs2-devel ocfs2_journal_shutdown(osb); 18430737e01dSHeming Zhao via Ocfs2-devel out_super_lock: 18440737e01dSHeming Zhao via Ocfs2-devel ocfs2_super_unlock(osb, 1); 18450737e01dSHeming Zhao via Ocfs2-devel out_dlm: 18460737e01dSHeming Zhao via Ocfs2-devel ocfs2_dlm_shutdown(osb, 0); 18470737e01dSHeming Zhao via Ocfs2-devel out: 1848ccd979bdSMark Fasheh return status; 1849ccd979bdSMark Fasheh } 1850ccd979bdSMark Fasheh 1851ccd979bdSMark Fasheh static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) 1852ccd979bdSMark Fasheh { 1853286eaa95SJoel Becker int tmp, hangup_needed = 0; 1854ccd979bdSMark Fasheh struct ocfs2_super *osb = NULL; 185599d7a882SGoldwyn Rodrigues char nodestr[12]; 1856ccd979bdSMark Fasheh 185732a42d39STao Ma trace_ocfs2_dismount_volume(sb); 1858ccd979bdSMark Fasheh 1859ccd979bdSMark Fasheh BUG_ON(!sb); 1860ccd979bdSMark Fasheh osb = OCFS2_SB(sb); 1861ccd979bdSMark Fasheh BUG_ON(!osb); 1862ccd979bdSMark Fasheh 18635f483c4aSGang He /* Remove file check sysfs related directores/files, 18645f483c4aSGang He * and wait for the pending file check operations */ 18655f483c4aSGang He ocfs2_filecheck_remove_sysfs(osb); 18665f483c4aSGang He 18675f483c4aSGang He kset_unregister(osb->osb_dev_kset); 18685f483c4aSGang He 1869692684e1SSunil Mushran /* Orphan scan should be stopped as early as possible */ 1870692684e1SSunil Mushran ocfs2_orphan_scan_stop(osb); 1871692684e1SSunil Mushran 187219ece546SJan Kara ocfs2_disable_quotas(osb); 187319ece546SJan Kara 1874e3a767b6SJan Kara /* All dquots should be freed by now */ 1875e3a767b6SJan Kara WARN_ON(!llist_empty(&osb->dquot_drop_list)); 1876e3a767b6SJan Kara /* Wait for worker to be done with the work structure in osb */ 1877e3a767b6SJan Kara cancel_work_sync(&osb->dquot_drop_work); 1878e3a767b6SJan Kara 1879ccd979bdSMark Fasheh ocfs2_shutdown_local_alloc(osb); 1880ccd979bdSMark Fasheh 1881b253bfd8SXue jiufei ocfs2_truncate_log_shutdown(osb); 1882b253bfd8SXue jiufei 1883553abd04SJoel Becker /* This will disable recovery and flush any recovery work. */ 1884553abd04SJoel Becker ocfs2_recovery_exit(osb); 1885ccd979bdSMark Fasheh 1886ccd979bdSMark Fasheh ocfs2_sync_blockdev(sb); 1887ccd979bdSMark Fasheh 1888374a263eSTao Ma ocfs2_purge_refcount_trees(osb); 1889374a263eSTao Ma 18904670c46dSJoel Becker /* No cluster connection means we've failed during mount, so skip 18914670c46dSJoel Becker * all the steps which depended on that to complete. */ 18924670c46dSJoel Becker if (osb->cconn) { 1893ccd979bdSMark Fasheh tmp = ocfs2_super_lock(osb, 1); 1894ccd979bdSMark Fasheh if (tmp < 0) { 1895ccd979bdSMark Fasheh mlog_errno(tmp); 1896ccd979bdSMark Fasheh return; 1897ccd979bdSMark Fasheh } 189819b613d4SMark Fasheh } 1899ccd979bdSMark Fasheh 1900ccd979bdSMark Fasheh if (osb->slot_num != OCFS2_INVALID_SLOT) 1901ccd979bdSMark Fasheh ocfs2_put_slot(osb); 1902ccd979bdSMark Fasheh 19034670c46dSJoel Becker if (osb->cconn) 1904ccd979bdSMark Fasheh ocfs2_super_unlock(osb, 1); 1905ccd979bdSMark Fasheh 1906ccd979bdSMark Fasheh ocfs2_release_system_inodes(osb); 1907ccd979bdSMark Fasheh 1908da5e7c87SValentin Vidic ocfs2_journal_shutdown(osb); 1909da5e7c87SValentin Vidic 19106953b4c0SJoel Becker /* 19116953b4c0SJoel Becker * If we're dismounting due to mount error, mount.ocfs2 will clean 19126953b4c0SJoel Becker * up heartbeat. If we're a local mount, there is no heartbeat. 19136953b4c0SJoel Becker * If we failed before we got a uuid_str yet, we can't stop 19146953b4c0SJoel Becker * heartbeat. Otherwise, do it. 19156953b4c0SJoel Becker */ 191603efed8aSTiger Yang if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str && 191703efed8aSTiger Yang !ocfs2_is_hard_readonly(osb)) 1918286eaa95SJoel Becker hangup_needed = 1; 1919286eaa95SJoel Becker 1920286eaa95SJoel Becker ocfs2_dlm_shutdown(osb, hangup_needed); 1921286eaa95SJoel Becker 192273be192bSJoel Becker ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); 19235e7a3ed9SGreg Kroah-Hartman debugfs_remove_recursive(osb->osb_debug_root); 1924286eaa95SJoel Becker 1925286eaa95SJoel Becker if (hangup_needed) 19266953b4c0SJoel Becker ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); 1927ccd979bdSMark Fasheh 1928ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); 1929ccd979bdSMark Fasheh 1930c271c5c2SSunil Mushran if (ocfs2_mount_local(osb)) 1931c271c5c2SSunil Mushran snprintf(nodestr, sizeof(nodestr), "local"); 1932c271c5c2SSunil Mushran else 193319fdb624SJoel Becker snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); 1934c271c5c2SSunil Mushran 1935c271c5c2SSunil Mushran printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", 1936c271c5c2SSunil Mushran osb->dev_str, nodestr); 1937ccd979bdSMark Fasheh 1938ccd979bdSMark Fasheh ocfs2_delete_osb(osb); 1939ccd979bdSMark Fasheh kfree(osb); 1940ccd979bdSMark Fasheh sb->s_dev = 0; 1941ccd979bdSMark Fasheh sb->s_fs_info = NULL; 1942ccd979bdSMark Fasheh } 1943ccd979bdSMark Fasheh 1944ccd979bdSMark Fasheh static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, 1945ccd979bdSMark Fasheh unsigned uuid_bytes) 1946ccd979bdSMark Fasheh { 1947ccd979bdSMark Fasheh int i, ret; 1948ccd979bdSMark Fasheh char *ptr; 1949ccd979bdSMark Fasheh 1950ccd979bdSMark Fasheh BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); 1951ccd979bdSMark Fasheh 1952cd861280SRobert P. J. Day osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); 1953ccd979bdSMark Fasheh if (osb->uuid_str == NULL) 1954ccd979bdSMark Fasheh return -ENOMEM; 1955ccd979bdSMark Fasheh 1956ccd979bdSMark Fasheh for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { 1957ccd979bdSMark Fasheh /* print with null */ 1958ccd979bdSMark Fasheh ret = snprintf(ptr, 3, "%02X", uuid[i]); 1959ccd979bdSMark Fasheh if (ret != 2) /* drop super cleans up */ 1960ccd979bdSMark Fasheh return -EINVAL; 1961ccd979bdSMark Fasheh /* then only advance past the last char */ 1962ccd979bdSMark Fasheh ptr += 2; 1963ccd979bdSMark Fasheh } 1964ccd979bdSMark Fasheh 1965ccd979bdSMark Fasheh return 0; 1966ccd979bdSMark Fasheh } 1967ccd979bdSMark Fasheh 19683bdb8efdSPatrick J. LoPresti /* Make sure entire volume is addressable by our journal. Requires 19693bdb8efdSPatrick J. LoPresti osb_clusters_at_boot to be valid and for the journal to have been 19703bdb8efdSPatrick J. LoPresti initialized by ocfs2_journal_init(). */ 19713bdb8efdSPatrick J. LoPresti static int ocfs2_journal_addressable(struct ocfs2_super *osb) 19723bdb8efdSPatrick J. LoPresti { 19733bdb8efdSPatrick J. LoPresti int status = 0; 19743bdb8efdSPatrick J. LoPresti u64 max_block = 19753bdb8efdSPatrick J. LoPresti ocfs2_clusters_to_blocks(osb->sb, 19763bdb8efdSPatrick J. LoPresti osb->osb_clusters_at_boot) - 1; 19773bdb8efdSPatrick J. LoPresti 19783bdb8efdSPatrick J. LoPresti /* 32-bit block number is always OK. */ 19793bdb8efdSPatrick J. LoPresti if (max_block <= (u32)~0ULL) 19803bdb8efdSPatrick J. LoPresti goto out; 19813bdb8efdSPatrick J. LoPresti 19823bdb8efdSPatrick J. LoPresti /* Volume is "huge", so see if our journal is new enough to 19833bdb8efdSPatrick J. LoPresti support it. */ 19843bdb8efdSPatrick J. LoPresti if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, 19853bdb8efdSPatrick J. LoPresti OCFS2_FEATURE_COMPAT_JBD2_SB) && 19863bdb8efdSPatrick J. LoPresti jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, 19873bdb8efdSPatrick J. LoPresti JBD2_FEATURE_INCOMPAT_64BIT))) { 19883bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "The journal cannot address the entire volume. " 19893bdb8efdSPatrick J. LoPresti "Enable the 'block64' journal option with tunefs.ocfs2"); 19903bdb8efdSPatrick J. LoPresti status = -EFBIG; 19913bdb8efdSPatrick J. LoPresti goto out; 19923bdb8efdSPatrick J. LoPresti } 19933bdb8efdSPatrick J. LoPresti 19943bdb8efdSPatrick J. LoPresti out: 19953bdb8efdSPatrick J. LoPresti return status; 19963bdb8efdSPatrick J. LoPresti } 19973bdb8efdSPatrick J. LoPresti 1998ccd979bdSMark Fasheh static int ocfs2_initialize_super(struct super_block *sb, 1999ccd979bdSMark Fasheh struct buffer_head *bh, 200073be192bSJoel Becker int sector_size, 200173be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2002ccd979bdSMark Fasheh { 2003bddb8eb3SDenis Cheng int status; 20045a254031SMark Fasheh int i, cbits, bbits; 20055a254031SMark Fasheh struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; 2006ccd979bdSMark Fasheh struct inode *inode = NULL; 2007ccd979bdSMark Fasheh struct ocfs2_super *osb; 20083bdb8efdSPatrick J. LoPresti u64 total_blocks; 2009ccd979bdSMark Fasheh 2010cd861280SRobert P. J. Day osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); 2011ccd979bdSMark Fasheh if (!osb) { 2012ccd979bdSMark Fasheh status = -ENOMEM; 2013ccd979bdSMark Fasheh mlog_errno(status); 2014a8a986dbSHeming Zhao via Ocfs2-devel goto out; 2015ccd979bdSMark Fasheh } 2016ccd979bdSMark Fasheh 2017ccd979bdSMark Fasheh sb->s_fs_info = osb; 2018ccd979bdSMark Fasheh sb->s_op = &ocfs2_sops; 2019ba87167cSAl Viro sb->s_d_op = &ocfs2_dentry_ops; 2020ccd979bdSMark Fasheh sb->s_export_op = &ocfs2_export_ops; 2021664dbd5fSJan Kara sb->s_qcop = &dquot_quotactl_sysfile_ops; 202219ece546SJan Kara sb->dq_op = &ocfs2_quota_operations; 20231c92ec67SJan Kara sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP; 2024cf1d6c76STiger Yang sb->s_xattr = ocfs2_xattr_handlers; 2025e0dceaf0SMark Fasheh sb->s_time_gran = 1; 20261751e8a6SLinus Torvalds sb->s_flags |= SB_NOATIME; 2027ccd979bdSMark Fasheh /* this is needed to support O_LARGEFILE */ 20285a254031SMark Fasheh cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); 20295a254031SMark Fasheh bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); 20305a254031SMark Fasheh sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); 203185787090SChristoph Hellwig memcpy(&sb->s_uuid, di->id2.i_super.s_uuid, 203258be19dcSVladimir Davydov sizeof(di->id2.i_super.s_uuid)); 2033ccd979bdSMark Fasheh 20349b7895efSMark Fasheh osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; 20359b7895efSMark Fasheh 20369b7895efSMark Fasheh for (i = 0; i < 3; i++) 20379b7895efSMark Fasheh osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); 20389b7895efSMark Fasheh osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); 20399b7895efSMark Fasheh 2040ccd979bdSMark Fasheh osb->sb = sb; 2041ccd979bdSMark Fasheh osb->s_sectsize_bits = blksize_bits(sector_size); 2042ebdec83bSEric Sesterhenn / snakebyte BUG_ON(!osb->s_sectsize_bits); 2043ccd979bdSMark Fasheh 204434d024f8SMark Fasheh spin_lock_init(&osb->dc_task_lock); 204534d024f8SMark Fasheh init_waitqueue_head(&osb->dc_event); 204634d024f8SMark Fasheh osb->dc_work_sequence = 0; 204734d024f8SMark Fasheh osb->dc_wake_sequence = 0; 2048ccd979bdSMark Fasheh INIT_LIST_HEAD(&osb->blocked_lock_list); 2049ccd979bdSMark Fasheh osb->blocked_lock_count = 0; 2050ccd979bdSMark Fasheh spin_lock_init(&osb->osb_lock); 2051c8b9cf9aSTao Ma spin_lock_init(&osb->osb_xattr_lock); 2052b89c5428STiger Yang ocfs2_init_steal_slots(osb); 2053ccd979bdSMark Fasheh 205443b10a20Sjiangyiwen mutex_init(&osb->system_file_mutex); 205543b10a20Sjiangyiwen 2056ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.moves, 0); 2057ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.local_data, 0); 2058ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bitmap_data, 0); 2059ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_allocs, 0); 2060ccd979bdSMark Fasheh atomic_set(&osb->alloc_stats.bg_extends, 0); 2061ccd979bdSMark Fasheh 206273be192bSJoel Becker /* Copy the blockcheck stats from the superblock probe */ 206373be192bSJoel Becker osb->osb_ecc_stats = *stats; 206473be192bSJoel Becker 2065ccd979bdSMark Fasheh ocfs2_init_node_maps(osb); 2066ccd979bdSMark Fasheh 2067ccd979bdSMark Fasheh snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", 2068ccd979bdSMark Fasheh MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); 2069ccd979bdSMark Fasheh 207075d9bbc7SGoldwyn Rodrigues osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); 207175d9bbc7SGoldwyn Rodrigues if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { 207275d9bbc7SGoldwyn Rodrigues mlog(ML_ERROR, "Invalid number of node slots (%u)\n", 207375d9bbc7SGoldwyn Rodrigues osb->max_slots); 207475d9bbc7SGoldwyn Rodrigues status = -EINVAL; 2075a8a986dbSHeming Zhao via Ocfs2-devel goto out; 207675d9bbc7SGoldwyn Rodrigues } 207775d9bbc7SGoldwyn Rodrigues 20788b712cd5SJeff Mahoney ocfs2_orphan_scan_init(osb); 20798b712cd5SJeff Mahoney 2080553abd04SJoel Becker status = ocfs2_recovery_init(osb); 2081553abd04SJoel Becker if (status) { 2082553abd04SJoel Becker mlog(ML_ERROR, "Unable to initialize recovery state\n"); 2083553abd04SJoel Becker mlog_errno(status); 2084a8a986dbSHeming Zhao via Ocfs2-devel goto out; 2085553abd04SJoel Becker } 2086ccd979bdSMark Fasheh 2087ccd979bdSMark Fasheh init_waitqueue_head(&osb->checkpoint_event); 2088ccd979bdSMark Fasheh 20897f1a37e3STiger Yang osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; 20907f1a37e3STiger Yang 2091ccd979bdSMark Fasheh osb->slot_num = OCFS2_INVALID_SLOT; 2092ccd979bdSMark Fasheh 20938154da3dSTiger Yang osb->s_xattr_inline_size = le16_to_cpu( 20948154da3dSTiger Yang di->id2.i_super.s_xattr_inline_size); 2095fdd77704STiger Yang 2096ccd979bdSMark Fasheh osb->local_alloc_state = OCFS2_LA_UNUSED; 2097ccd979bdSMark Fasheh osb->local_alloc_bh = NULL; 20989c7af40bSMark Fasheh INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); 2099ccd979bdSMark Fasheh 2100ccd979bdSMark Fasheh init_waitqueue_head(&osb->osb_mount_event); 2101ccd979bdSMark Fasheh 210254bd3f7cSHeming Zhao via Ocfs2-devel ocfs2_resmap_init(osb, &osb->osb_la_resmap); 2103d02f00ccSMark Fasheh 2104ccd979bdSMark Fasheh osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); 2105ccd979bdSMark Fasheh if (!osb->vol_label) { 2106ccd979bdSMark Fasheh mlog(ML_ERROR, "unable to alloc vol label\n"); 2107ccd979bdSMark Fasheh status = -ENOMEM; 2108a8a986dbSHeming Zhao via Ocfs2-devel goto out_recovery_map; 2109ccd979bdSMark Fasheh } 2110ccd979bdSMark Fasheh 2111539d8264SSunil Mushran osb->slot_recovery_generations = 2112539d8264SSunil Mushran kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), 2113539d8264SSunil Mushran GFP_KERNEL); 2114539d8264SSunil Mushran if (!osb->slot_recovery_generations) { 2115539d8264SSunil Mushran status = -ENOMEM; 2116539d8264SSunil Mushran mlog_errno(status); 2117a8a986dbSHeming Zhao via Ocfs2-devel goto out_vol_label; 2118539d8264SSunil Mushran } 2119539d8264SSunil Mushran 2120b4df6ed8SMark Fasheh init_waitqueue_head(&osb->osb_wipe_event); 2121b4df6ed8SMark Fasheh osb->osb_orphan_wipes = kcalloc(osb->max_slots, 2122b4df6ed8SMark Fasheh sizeof(*osb->osb_orphan_wipes), 2123b4df6ed8SMark Fasheh GFP_KERNEL); 2124b4df6ed8SMark Fasheh if (!osb->osb_orphan_wipes) { 2125b4df6ed8SMark Fasheh status = -ENOMEM; 2126b4df6ed8SMark Fasheh mlog_errno(status); 2127a8a986dbSHeming Zhao via Ocfs2-devel goto out_slot_recovery_gen; 2128b4df6ed8SMark Fasheh } 2129b4df6ed8SMark Fasheh 2130374a263eSTao Ma osb->osb_rf_lock_tree = RB_ROOT; 2131374a263eSTao Ma 2132ccd979bdSMark Fasheh osb->s_feature_compat = 2133ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); 2134ccd979bdSMark Fasheh osb->s_feature_ro_compat = 2135ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); 2136ccd979bdSMark Fasheh osb->s_feature_incompat = 2137ccd979bdSMark Fasheh le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); 2138ccd979bdSMark Fasheh 2139ccd979bdSMark Fasheh if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { 2140ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount because of unsupported " 2141ccd979bdSMark Fasheh "optional features (%x).\n", i); 2142ccd979bdSMark Fasheh status = -EINVAL; 2143a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2144ccd979bdSMark Fasheh } 2145bc98a42cSDavid Howells if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { 2146ccd979bdSMark Fasheh mlog(ML_ERROR, "couldn't mount RDWR because of " 2147ccd979bdSMark Fasheh "unsupported optional features (%x).\n", i); 2148ccd979bdSMark Fasheh status = -EINVAL; 2149a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2150ccd979bdSMark Fasheh } 2151ccd979bdSMark Fasheh 215298f486f2SSunil Mushran if (ocfs2_clusterinfo_valid(osb)) { 2153b15fa922SValentin Vidic /* 2154b15fa922SValentin Vidic * ci_stack and ci_cluster in ocfs2_cluster_info may not be null 2155b15fa922SValentin Vidic * terminated, so make sure no overflow happens here by using 2156b15fa922SValentin Vidic * memcpy. Destination strings will always be null terminated 2157b15fa922SValentin Vidic * because osb is allocated using kzalloc. 2158b15fa922SValentin Vidic */ 215998f486f2SSunil Mushran osb->osb_stackflags = 216098f486f2SSunil Mushran OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; 2161b15fa922SValentin Vidic memcpy(osb->osb_cluster_stack, 2162b61817e1SJoel Becker OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, 2163b15fa922SValentin Vidic OCFS2_STACK_LABEL_LEN); 2164b61817e1SJoel Becker if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { 2165b61817e1SJoel Becker mlog(ML_ERROR, 2166b61817e1SJoel Becker "couldn't mount because of an invalid " 2167b61817e1SJoel Becker "cluster stack label (%s) \n", 2168b61817e1SJoel Becker osb->osb_cluster_stack); 2169b61817e1SJoel Becker status = -EINVAL; 2170a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2171b61817e1SJoel Becker } 2172b15fa922SValentin Vidic memcpy(osb->osb_cluster_name, 2173c74a3bddSGoldwyn Rodrigues OCFS2_RAW_SB(di)->s_cluster_info.ci_cluster, 2174b15fa922SValentin Vidic OCFS2_CLUSTER_NAME_LEN); 2175b61817e1SJoel Becker } else { 2176b61817e1SJoel Becker /* The empty string is identical with classic tools that 2177b61817e1SJoel Becker * don't know about s_cluster_info. */ 2178b61817e1SJoel Becker osb->osb_cluster_stack[0] = '\0'; 2179b61817e1SJoel Becker } 2180b61817e1SJoel Becker 2181ccd979bdSMark Fasheh get_random_bytes(&osb->s_next_generation, sizeof(u32)); 2182ccd979bdSMark Fasheh 2183bb20b31dSHeming Zhao via Ocfs2-devel /* 2184bb20b31dSHeming Zhao via Ocfs2-devel * FIXME 2185bb20b31dSHeming Zhao via Ocfs2-devel * This should be done in ocfs2_journal_init(), but any inode 2186bb20b31dSHeming Zhao via Ocfs2-devel * writes back operation will cause the filesystem to crash. 2187bb20b31dSHeming Zhao via Ocfs2-devel */ 2188bb20b31dSHeming Zhao via Ocfs2-devel status = ocfs2_journal_alloc(osb); 2189bb20b31dSHeming Zhao via Ocfs2-devel if (status < 0) 2190a8a986dbSHeming Zhao via Ocfs2-devel goto out_orphan_wipes; 2191bb20b31dSHeming Zhao via Ocfs2-devel 2192e3a767b6SJan Kara INIT_WORK(&osb->dquot_drop_work, ocfs2_drop_dquot_refs); 2193e3a767b6SJan Kara init_llist_head(&osb->dquot_drop_list); 2194e3a767b6SJan Kara 2195ccd979bdSMark Fasheh /* get some pseudo constants for clustersize bits */ 2196ccd979bdSMark Fasheh osb->s_clustersize_bits = 2197ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits); 2198ccd979bdSMark Fasheh osb->s_clustersize = 1 << osb->s_clustersize_bits; 2199ccd979bdSMark Fasheh 2200ccd979bdSMark Fasheh if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || 2201ccd979bdSMark Fasheh osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { 2202ccd979bdSMark Fasheh mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", 2203ccd979bdSMark Fasheh osb->s_clustersize); 2204ccd979bdSMark Fasheh status = -EINVAL; 2205a8a986dbSHeming Zhao via Ocfs2-devel goto out_journal; 2206ccd979bdSMark Fasheh } 2207ccd979bdSMark Fasheh 22083bdb8efdSPatrick J. LoPresti total_blocks = ocfs2_clusters_to_blocks(osb->sb, 22093bdb8efdSPatrick J. LoPresti le32_to_cpu(di->i_clusters)); 22103bdb8efdSPatrick J. LoPresti 22113bdb8efdSPatrick J. LoPresti status = generic_check_addressable(osb->sb->s_blocksize_bits, 22123bdb8efdSPatrick J. LoPresti total_blocks); 22133bdb8efdSPatrick J. LoPresti if (status) { 22143bdb8efdSPatrick J. LoPresti mlog(ML_ERROR, "Volume too large " 22153bdb8efdSPatrick J. LoPresti "to mount safely on this system"); 22163bdb8efdSPatrick J. LoPresti status = -EFBIG; 2217a8a986dbSHeming Zhao via Ocfs2-devel goto out_journal; 2218ccd979bdSMark Fasheh } 2219ccd979bdSMark Fasheh 2220ccd979bdSMark Fasheh if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, 2221ccd979bdSMark Fasheh sizeof(di->id2.i_super.s_uuid))) { 2222ccd979bdSMark Fasheh mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); 2223ccd979bdSMark Fasheh status = -ENOMEM; 2224a8a986dbSHeming Zhao via Ocfs2-devel goto out_journal; 2225ccd979bdSMark Fasheh } 2226ccd979bdSMark Fasheh 2227c97e21feSWolfram Sang strscpy(osb->vol_label, di->id2.i_super.s_label, 222869201bb1SFabian Frederick OCFS2_MAX_VOL_LABEL_LEN); 2229ccd979bdSMark Fasheh osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); 2230ccd979bdSMark Fasheh osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); 2231ccd979bdSMark Fasheh osb->first_cluster_group_blkno = 2232ccd979bdSMark Fasheh le64_to_cpu(di->id2.i_super.s_first_cluster_group); 2233ccd979bdSMark Fasheh osb->fs_generation = le32_to_cpu(di->i_fs_generation); 2234cf1d6c76STiger Yang osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); 223532a42d39STao Ma trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, 2236b0697053SMark Fasheh (unsigned long long)osb->root_blkno, 223732a42d39STao Ma (unsigned long long)osb->system_dir_blkno, 223832a42d39STao Ma osb->s_clustersize_bits); 2239ccd979bdSMark Fasheh 2240ccd979bdSMark Fasheh osb->osb_dlm_debug = ocfs2_new_dlm_debug(); 2241ccd979bdSMark Fasheh if (!osb->osb_dlm_debug) { 2242ccd979bdSMark Fasheh status = -ENOMEM; 2243ccd979bdSMark Fasheh mlog_errno(status); 2244a8a986dbSHeming Zhao via Ocfs2-devel goto out_uuid_str; 2245ccd979bdSMark Fasheh } 2246ccd979bdSMark Fasheh 2247ccd979bdSMark Fasheh atomic_set(&osb->vol_state, VOLUME_INIT); 2248ccd979bdSMark Fasheh 2249ccd979bdSMark Fasheh /* load root, system_dir, and all global system inodes */ 2250ccd979bdSMark Fasheh status = ocfs2_init_global_system_inodes(osb); 2251ccd979bdSMark Fasheh if (status < 0) { 2252ccd979bdSMark Fasheh mlog_errno(status); 2253a8a986dbSHeming Zhao via Ocfs2-devel goto out_dlm_out; 2254ccd979bdSMark Fasheh } 2255ccd979bdSMark Fasheh 2256ccd979bdSMark Fasheh /* 2257ccd979bdSMark Fasheh * global bitmap 2258ccd979bdSMark Fasheh */ 2259ccd979bdSMark Fasheh inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, 2260ccd979bdSMark Fasheh OCFS2_INVALID_SLOT); 2261ccd979bdSMark Fasheh if (!inode) { 2262ccd979bdSMark Fasheh status = -EINVAL; 2263ccd979bdSMark Fasheh mlog_errno(status); 2264a8a986dbSHeming Zhao via Ocfs2-devel goto out_system_inodes; 2265ccd979bdSMark Fasheh } 2266ccd979bdSMark Fasheh 2267ccd979bdSMark Fasheh osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; 22686b82021bSMark Fasheh osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; 2269ccd979bdSMark Fasheh iput(inode); 2270ccd979bdSMark Fasheh 22718571882cSTao Ma osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, 22728571882cSTao Ma osb->s_feature_incompat) * 8; 2273ccd979bdSMark Fasheh 2274ccd979bdSMark Fasheh status = ocfs2_init_slot_info(osb); 2275ccd979bdSMark Fasheh if (status < 0) { 2276ccd979bdSMark Fasheh mlog_errno(status); 2277a8a986dbSHeming Zhao via Ocfs2-devel goto out_system_inodes; 2278ccd979bdSMark Fasheh } 2279ccd979bdSMark Fasheh 228044be9756SBhaktipriya Shridhar osb->ocfs2_wq = alloc_ordered_workqueue("ocfs2_wq", WQ_MEM_RECLAIM); 228135ddf78eSjiangyiwen if (!osb->ocfs2_wq) { 228235ddf78eSjiangyiwen status = -ENOMEM; 228335ddf78eSjiangyiwen mlog_errno(status); 2284a8a986dbSHeming Zhao via Ocfs2-devel goto out_slot_info; 228535ddf78eSjiangyiwen } 228635ddf78eSjiangyiwen 2287a8a986dbSHeming Zhao via Ocfs2-devel return status; 2288a8a986dbSHeming Zhao via Ocfs2-devel 2289a8a986dbSHeming Zhao via Ocfs2-devel out_slot_info: 2290a8a986dbSHeming Zhao via Ocfs2-devel ocfs2_free_slot_info(osb); 2291a8a986dbSHeming Zhao via Ocfs2-devel out_system_inodes: 2292a8a986dbSHeming Zhao via Ocfs2-devel ocfs2_release_system_inodes(osb); 2293a8a986dbSHeming Zhao via Ocfs2-devel out_dlm_out: 2294a8a986dbSHeming Zhao via Ocfs2-devel ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2295a8a986dbSHeming Zhao via Ocfs2-devel out_uuid_str: 2296a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->uuid_str); 2297a8a986dbSHeming Zhao via Ocfs2-devel out_journal: 2298a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->journal); 2299a8a986dbSHeming Zhao via Ocfs2-devel out_orphan_wipes: 2300a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->osb_orphan_wipes); 2301a8a986dbSHeming Zhao via Ocfs2-devel out_slot_recovery_gen: 2302a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->slot_recovery_generations); 2303a8a986dbSHeming Zhao via Ocfs2-devel out_vol_label: 2304a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->vol_label); 2305a8a986dbSHeming Zhao via Ocfs2-devel out_recovery_map: 2306a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb->recovery_map); 2307a8a986dbSHeming Zhao via Ocfs2-devel out: 2308a8a986dbSHeming Zhao via Ocfs2-devel kfree(osb); 2309a8a986dbSHeming Zhao via Ocfs2-devel sb->s_fs_info = NULL; 2310ccd979bdSMark Fasheh return status; 2311ccd979bdSMark Fasheh } 2312ccd979bdSMark Fasheh 2313ccd979bdSMark Fasheh /* 2314ccd979bdSMark Fasheh * will return: -EAGAIN if it is ok to keep searching for superblocks 2315ccd979bdSMark Fasheh * -EINVAL if there is a bad superblock 2316ccd979bdSMark Fasheh * 0 on success 2317ccd979bdSMark Fasheh */ 2318ccd979bdSMark Fasheh static int ocfs2_verify_volume(struct ocfs2_dinode *di, 2319ccd979bdSMark Fasheh struct buffer_head *bh, 232073be192bSJoel Becker u32 blksz, 232173be192bSJoel Becker struct ocfs2_blockcheck_stats *stats) 2322ccd979bdSMark Fasheh { 2323ccd979bdSMark Fasheh int status = -EAGAIN; 2324ccd979bdSMark Fasheh 2325ccd979bdSMark Fasheh if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, 2326ccd979bdSMark Fasheh strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { 2327d030cc97SJoel Becker /* We have to do a raw check of the feature here */ 2328d030cc97SJoel Becker if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & 2329d030cc97SJoel Becker OCFS2_FEATURE_INCOMPAT_META_ECC) { 2330d030cc97SJoel Becker status = ocfs2_block_check_validate(bh->b_data, 2331d030cc97SJoel Becker bh->b_size, 233273be192bSJoel Becker &di->i_check, 233373be192bSJoel Becker stats); 2334d030cc97SJoel Becker if (status) 2335d030cc97SJoel Becker goto out; 2336d030cc97SJoel Becker } 2337ccd979bdSMark Fasheh status = -EINVAL; 2338ccd979bdSMark Fasheh if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { 2339ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with incorrect block " 2340ccd979bdSMark Fasheh "size: found %u, should be %u\n", 2341ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), 2342ccd979bdSMark Fasheh blksz); 2343ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != 2344ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL || 2345ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level) != 2346ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL) { 2347ccd979bdSMark Fasheh mlog(ML_ERROR, "found superblock with bad version: " 2348ccd979bdSMark Fasheh "found %u.%u, should be %u.%u\n", 2349ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_major_rev_level), 2350ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_minor_rev_level), 2351ccd979bdSMark Fasheh OCFS2_MAJOR_REV_LEVEL, 2352ccd979bdSMark Fasheh OCFS2_MINOR_REV_LEVEL); 2353ccd979bdSMark Fasheh } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { 2354ccd979bdSMark Fasheh mlog(ML_ERROR, "bad block number on superblock: " 2355b0697053SMark Fasheh "found %llu, should be %llu\n", 23561ca1a111SMark Fasheh (unsigned long long)le64_to_cpu(di->i_blkno), 2357b0697053SMark Fasheh (unsigned long long)bh->b_blocknr); 2358ccd979bdSMark Fasheh } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || 2359ccd979bdSMark Fasheh le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { 2360ccd979bdSMark Fasheh mlog(ML_ERROR, "bad cluster size found: %u\n", 2361ccd979bdSMark Fasheh 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); 2362ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { 2363ccd979bdSMark Fasheh mlog(ML_ERROR, "bad root_blkno: 0\n"); 2364ccd979bdSMark Fasheh } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { 2365ccd979bdSMark Fasheh mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); 2366ccd979bdSMark Fasheh } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { 2367ccd979bdSMark Fasheh mlog(ML_ERROR, 2368ccd979bdSMark Fasheh "Superblock slots found greater than file system " 2369ccd979bdSMark Fasheh "maximum: found %u, max %u\n", 2370ccd979bdSMark Fasheh le16_to_cpu(di->id2.i_super.s_max_slots), 2371ccd979bdSMark Fasheh OCFS2_MAX_SLOTS); 2372ccd979bdSMark Fasheh } else { 2373ccd979bdSMark Fasheh /* found it! */ 2374ccd979bdSMark Fasheh status = 0; 2375ccd979bdSMark Fasheh } 2376ccd979bdSMark Fasheh } 2377ccd979bdSMark Fasheh 2378d030cc97SJoel Becker out: 2379c1e8d35eSTao Ma if (status && status != -EAGAIN) 2380c1e8d35eSTao Ma mlog_errno(status); 2381ccd979bdSMark Fasheh return status; 2382ccd979bdSMark Fasheh } 2383ccd979bdSMark Fasheh 2384ccd979bdSMark Fasheh static int ocfs2_check_volume(struct ocfs2_super *osb) 2385ccd979bdSMark Fasheh { 2386bddb8eb3SDenis Cheng int status; 2387ccd979bdSMark Fasheh int dirty; 2388c271c5c2SSunil Mushran int local; 2389ccd979bdSMark Fasheh struct ocfs2_dinode *local_alloc = NULL; /* only used if we 2390ccd979bdSMark Fasheh * recover 2391ccd979bdSMark Fasheh * ourselves. */ 2392ccd979bdSMark Fasheh 2393ccd979bdSMark Fasheh /* Init our journal object. */ 2394da5e7c87SValentin Vidic status = ocfs2_journal_init(osb, &dirty); 2395ccd979bdSMark Fasheh if (status < 0) { 2396ccd979bdSMark Fasheh mlog(ML_ERROR, "Could not initialize journal!\n"); 2397ccd979bdSMark Fasheh goto finally; 2398ccd979bdSMark Fasheh } 2399ccd979bdSMark Fasheh 24003bdb8efdSPatrick J. LoPresti /* Now that journal has been initialized, check to make sure 24013bdb8efdSPatrick J. LoPresti entire volume is addressable. */ 24023bdb8efdSPatrick J. LoPresti status = ocfs2_journal_addressable(osb); 24033bdb8efdSPatrick J. LoPresti if (status) 24043bdb8efdSPatrick J. LoPresti goto finally; 24053bdb8efdSPatrick J. LoPresti 2406ccd979bdSMark Fasheh /* If the journal was unmounted cleanly then we don't want to 2407ccd979bdSMark Fasheh * recover anything. Otherwise, journal_load will do that 2408ccd979bdSMark Fasheh * dirty work for us :) */ 2409ccd979bdSMark Fasheh if (!dirty) { 2410ccd979bdSMark Fasheh status = ocfs2_journal_wipe(osb->journal, 0); 2411ccd979bdSMark Fasheh if (status < 0) { 2412ccd979bdSMark Fasheh mlog_errno(status); 2413ccd979bdSMark Fasheh goto finally; 2414ccd979bdSMark Fasheh } 2415ccd979bdSMark Fasheh } else { 2416619c200dSSunil Mushran printk(KERN_NOTICE "ocfs2: File system on device (%s) was not " 2417619c200dSSunil Mushran "unmounted cleanly, recovering it.\n", osb->dev_str); 2418ccd979bdSMark Fasheh } 2419ccd979bdSMark Fasheh 2420c271c5c2SSunil Mushran local = ocfs2_mount_local(osb); 2421c271c5c2SSunil Mushran 2422ccd979bdSMark Fasheh /* will play back anything left in the journal. */ 2423539d8264SSunil Mushran status = ocfs2_journal_load(osb->journal, local, dirty); 242401af4820SWengang Wang if (status < 0) { 242501af4820SWengang Wang mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); 242601af4820SWengang Wang goto finally; 242701af4820SWengang Wang } 2428ccd979bdSMark Fasheh 24291dfeb768Salex chen if (osb->s_mount_opt & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT) 24301dfeb768Salex chen jbd2_journal_set_features(osb->journal->j_journal, 24311dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24321dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24331dfeb768Salex chen else 24341dfeb768Salex chen jbd2_journal_clear_features(osb->journal->j_journal, 24351dfeb768Salex chen JBD2_FEATURE_COMPAT_CHECKSUM, 0, 24361dfeb768Salex chen JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); 24371dfeb768Salex chen 2438ccd979bdSMark Fasheh if (dirty) { 2439ccd979bdSMark Fasheh /* recover my local alloc if we didn't unmount cleanly. */ 2440ccd979bdSMark Fasheh status = ocfs2_begin_local_alloc_recovery(osb, 2441ccd979bdSMark Fasheh osb->slot_num, 2442ccd979bdSMark Fasheh &local_alloc); 2443ccd979bdSMark Fasheh if (status < 0) { 2444ccd979bdSMark Fasheh mlog_errno(status); 2445ccd979bdSMark Fasheh goto finally; 2446ccd979bdSMark Fasheh } 2447ccd979bdSMark Fasheh /* we complete the recovery process after we've marked 2448ccd979bdSMark Fasheh * ourselves as mounted. */ 2449ccd979bdSMark Fasheh } 2450ccd979bdSMark Fasheh 2451ccd979bdSMark Fasheh status = ocfs2_load_local_alloc(osb); 2452ccd979bdSMark Fasheh if (status < 0) { 2453ccd979bdSMark Fasheh mlog_errno(status); 2454ccd979bdSMark Fasheh goto finally; 2455ccd979bdSMark Fasheh } 2456ccd979bdSMark Fasheh 2457ccd979bdSMark Fasheh if (dirty) { 2458ccd979bdSMark Fasheh /* Recovery will be completed after we've mounted the 2459ccd979bdSMark Fasheh * rest of the volume. */ 2460ccd979bdSMark Fasheh osb->local_alloc_copy = local_alloc; 2461ccd979bdSMark Fasheh local_alloc = NULL; 2462ccd979bdSMark Fasheh } 2463ccd979bdSMark Fasheh 2464ccd979bdSMark Fasheh /* go through each journal, trylock it and if you get the 2465ccd979bdSMark Fasheh * lock, and it's marked as dirty, set the bit in the recover 2466ccd979bdSMark Fasheh * map and launch a recovery thread for it. */ 2467ccd979bdSMark Fasheh status = ocfs2_mark_dead_nodes(osb); 24689140db04SSrinivas Eeda if (status < 0) { 24699140db04SSrinivas Eeda mlog_errno(status); 24709140db04SSrinivas Eeda goto finally; 24719140db04SSrinivas Eeda } 24729140db04SSrinivas Eeda 24739140db04SSrinivas Eeda status = ocfs2_compute_replay_slots(osb); 2474ccd979bdSMark Fasheh if (status < 0) 2475ccd979bdSMark Fasheh mlog_errno(status); 2476ccd979bdSMark Fasheh 2477ccd979bdSMark Fasheh finally: 2478ccd979bdSMark Fasheh kfree(local_alloc); 2479ccd979bdSMark Fasheh 2480c1e8d35eSTao Ma if (status) 2481c1e8d35eSTao Ma mlog_errno(status); 2482ccd979bdSMark Fasheh return status; 2483ccd979bdSMark Fasheh } 2484ccd979bdSMark Fasheh 2485ccd979bdSMark Fasheh /* 2486ccd979bdSMark Fasheh * The routine gets called from dismount or close whenever a dismount on 2487ccd979bdSMark Fasheh * volume is requested and the osb open count becomes 1. 2488ccd979bdSMark Fasheh * It will remove the osb from the global list and also free up all the 2489ccd979bdSMark Fasheh * initialized resources and fileobject. 2490ccd979bdSMark Fasheh */ 2491ccd979bdSMark Fasheh static void ocfs2_delete_osb(struct ocfs2_super *osb) 2492ccd979bdSMark Fasheh { 2493ccd979bdSMark Fasheh /* This function assumes that the caller has the main osb resource */ 2494ccd979bdSMark Fasheh 249535ddf78eSjiangyiwen /* ocfs2_initializer_super have already created this workqueue */ 249623e0813aSpiaojun if (osb->ocfs2_wq) 249735ddf78eSjiangyiwen destroy_workqueue(osb->ocfs2_wq); 249835ddf78eSjiangyiwen 24998e8a4603SMark Fasheh ocfs2_free_slot_info(osb); 2500ccd979bdSMark Fasheh 2501b4df6ed8SMark Fasheh kfree(osb->osb_orphan_wipes); 2502539d8264SSunil Mushran kfree(osb->slot_recovery_generations); 2503bb20b31dSHeming Zhao via Ocfs2-devel /* FIXME 2504bb20b31dSHeming Zhao via Ocfs2-devel * This belongs in journal shutdown, but because we have to 2505bb20b31dSHeming Zhao via Ocfs2-devel * allocate osb->journal at the middle of ocfs2_initialize_super(), 2506bb20b31dSHeming Zhao via Ocfs2-devel * we free it here. 2507bb20b31dSHeming Zhao via Ocfs2-devel */ 2508bb20b31dSHeming Zhao via Ocfs2-devel kfree(osb->journal); 2509ccd979bdSMark Fasheh kfree(osb->local_alloc_copy); 2510ccd979bdSMark Fasheh kfree(osb->uuid_str); 2511f13a568eSJoseph Qi kfree(osb->vol_label); 2512ccd979bdSMark Fasheh ocfs2_put_dlm_debug(osb->osb_dlm_debug); 2513ccd979bdSMark Fasheh memset(osb, 0, sizeof(struct ocfs2_super)); 2514ccd979bdSMark Fasheh } 2515ccd979bdSMark Fasheh 25167d0fb914SGoldwyn Rodrigues /* Depending on the mount option passed, perform one of the following: 25177d0fb914SGoldwyn Rodrigues * Put OCFS2 into a readonly state (default) 25187d0fb914SGoldwyn Rodrigues * Return EIO so that only the process errs 25197d0fb914SGoldwyn Rodrigues * Fix the error as if fsck.ocfs2 -y 25207d0fb914SGoldwyn Rodrigues * panic 25217d0fb914SGoldwyn Rodrigues */ 25227d0fb914SGoldwyn Rodrigues static int ocfs2_handle_error(struct super_block *sb) 2523ccd979bdSMark Fasheh { 2524ccd979bdSMark Fasheh struct ocfs2_super *osb = OCFS2_SB(sb); 25257d0fb914SGoldwyn Rodrigues int rv = 0; 2526ccd979bdSMark Fasheh 2527ccd979bdSMark Fasheh ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); 25287d0fb914SGoldwyn Rodrigues pr_crit("On-disk corruption discovered. " 25297d0fb914SGoldwyn Rodrigues "Please run fsck.ocfs2 once the filesystem is unmounted.\n"); 2530ccd979bdSMark Fasheh 25317d0fb914SGoldwyn Rodrigues if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) { 25327d0fb914SGoldwyn Rodrigues panic("OCFS2: (device %s): panic forced after error\n", 25337d0fb914SGoldwyn Rodrigues sb->s_id); 25347d0fb914SGoldwyn Rodrigues } else if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_CONT) { 25357d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: Returning error to the calling process.\n"); 25367d0fb914SGoldwyn Rodrigues rv = -EIO; 25377d0fb914SGoldwyn Rodrigues } else { /* default option */ 25387d0fb914SGoldwyn Rodrigues rv = -EROFS; 2539bc98a42cSDavid Howells if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb))) 25407d0fb914SGoldwyn Rodrigues return rv; 2541ccd979bdSMark Fasheh 25427d0fb914SGoldwyn Rodrigues pr_crit("OCFS2: File system is now read-only.\n"); 25431751e8a6SLinus Torvalds sb->s_flags |= SB_RDONLY; 2544ccd979bdSMark Fasheh ocfs2_set_ro_flag(osb, 0); 2545ccd979bdSMark Fasheh } 2546ccd979bdSMark Fasheh 25477d0fb914SGoldwyn Rodrigues return rv; 25487d0fb914SGoldwyn Rodrigues } 25497d0fb914SGoldwyn Rodrigues 25507d0fb914SGoldwyn Rodrigues int __ocfs2_error(struct super_block *sb, const char *function, 2551ccd979bdSMark Fasheh const char *fmt, ...) 2552ccd979bdSMark Fasheh { 25531543306eSJoe Perches struct va_format vaf; 2554ccd979bdSMark Fasheh va_list args; 2555ccd979bdSMark Fasheh 2556ccd979bdSMark Fasheh va_start(args, fmt); 25571543306eSJoe Perches vaf.fmt = fmt; 25581543306eSJoe Perches vaf.va = &args; 2559ccd979bdSMark Fasheh 2560ccd979bdSMark Fasheh /* Not using mlog here because we want to show the actual 2561ccd979bdSMark Fasheh * function the error came from. */ 25627ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %pV", 25631543306eSJoe Perches sb->s_id, function, &vaf); 25641543306eSJoe Perches 25651543306eSJoe Perches va_end(args); 2566ccd979bdSMark Fasheh 25677d0fb914SGoldwyn Rodrigues return ocfs2_handle_error(sb); 2568ccd979bdSMark Fasheh } 2569ccd979bdSMark Fasheh 2570ccd979bdSMark Fasheh /* Handle critical errors. This is intentionally more drastic than 2571ccd979bdSMark Fasheh * ocfs2_handle_error, so we only use for things like journal errors, 2572ccd979bdSMark Fasheh * etc. */ 25731543306eSJoe Perches void __ocfs2_abort(struct super_block *sb, const char *function, 2574ccd979bdSMark Fasheh const char *fmt, ...) 2575ccd979bdSMark Fasheh { 25761543306eSJoe Perches struct va_format vaf; 2577ccd979bdSMark Fasheh va_list args; 2578ccd979bdSMark Fasheh 2579ccd979bdSMark Fasheh va_start(args, fmt); 2580ccd979bdSMark Fasheh 25811543306eSJoe Perches vaf.fmt = fmt; 25821543306eSJoe Perches vaf.va = &args; 25831543306eSJoe Perches 25847ecef14aSJoe Perches printk(KERN_CRIT "OCFS2: abort (device %s): %s: %pV", 25851543306eSJoe Perches sb->s_id, function, &vaf); 25861543306eSJoe Perches 25871543306eSJoe Perches va_end(args); 2588ccd979bdSMark Fasheh 2589ccd979bdSMark Fasheh /* We don't have the cluster support yet to go straight to 2590ccd979bdSMark Fasheh * hard readonly in here. Until then, we want to keep 2591ccd979bdSMark Fasheh * ocfs2_abort() so that we can at least mark critical 2592ccd979bdSMark Fasheh * errors. 2593ccd979bdSMark Fasheh * 2594ccd979bdSMark Fasheh * TODO: This should abort the journal and alert other nodes 2595ccd979bdSMark Fasheh * that our slot needs recovery. */ 2596ccd979bdSMark Fasheh 2597ccd979bdSMark Fasheh /* Force a panic(). This stinks, but it's better than letting 2598ccd979bdSMark Fasheh * things continue without having a proper hard readonly 2599ccd979bdSMark Fasheh * here. */ 2600a2f2ddbfSSunil Mushran if (!ocfs2_mount_local(OCFS2_SB(sb))) 2601ccd979bdSMark Fasheh OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; 2602ccd979bdSMark Fasheh ocfs2_handle_error(sb); 2603ccd979bdSMark Fasheh } 2604ccd979bdSMark Fasheh 2605e4b963f1SJoel Becker /* 2606e4b963f1SJoel Becker * Void signal blockers, because in-kernel sigprocmask() only fails 2607e4b963f1SJoel Becker * when SIG_* is wrong. 2608e4b963f1SJoel Becker */ 2609e4b963f1SJoel Becker void ocfs2_block_signals(sigset_t *oldset) 2610e4b963f1SJoel Becker { 2611e4b963f1SJoel Becker int rc; 2612e4b963f1SJoel Becker sigset_t blocked; 2613e4b963f1SJoel Becker 2614e4b963f1SJoel Becker sigfillset(&blocked); 2615e4b963f1SJoel Becker rc = sigprocmask(SIG_BLOCK, &blocked, oldset); 2616e4b963f1SJoel Becker BUG_ON(rc); 2617e4b963f1SJoel Becker } 2618e4b963f1SJoel Becker 2619e4b963f1SJoel Becker void ocfs2_unblock_signals(sigset_t *oldset) 2620e4b963f1SJoel Becker { 2621e4b963f1SJoel Becker int rc = sigprocmask(SIG_SETMASK, oldset, NULL); 2622e4b963f1SJoel Becker BUG_ON(rc); 2623e4b963f1SJoel Becker } 2624e4b963f1SJoel Becker 2625ccd979bdSMark Fasheh module_init(ocfs2_init); 2626ccd979bdSMark Fasheh module_exit(ocfs2_exit); 2627